Complex Thoughts Quotes

Welcome to the wonderful world of jealousy, he thought. For the price of admission, you get a splitting headache, a nearly irresistable urge to commit murder, and an inferiority complex. Yippee.

The mind is not a book, to be opened at will and examined at leisure. Thoughts are not etched on the inside of skulls, to be perused by an invader. The mind is a complex and many-layered thing, Potter… or at least, most minds are…

If you care about being thought credible and intelligent, do not use complex language where simpler language will do.

What is a genius? A person who demands little to nothing from others, but is often found extremely difficult to have around.

I love you, he thought, looking at Win. I love every part of you, every thought and word... the entire complex, fascinating bundle of all the things you are. I want you with ten different kinds of need at once. I love all the seasons of you, the way you are now, the thought of how much more beautiful you'll be in the decades to come. I love you for being the answer to every question my heart could ask.

They think that intelligence is about noticing things are relevant (detecting patterns); in a complex world, intelligence consists in ignoring things that are irrelevant (avoiding false patterns)

Quickly, Holly," said Artemis urgently. "Follow those bubbles." Holly opened the throttle. "Now there's an order I never thought I'd hear from you.

A genius is someone who takes a complex thing and makes it look simple. An academic does the opposite.

when you have more words to describe the world, you increase your ability to think complex thoughts.

Holly is alive,' thought Foaly 'My princess lives,'exulted Orion. 'And we're chasing a dragon

I love you, he thought, looking at Win. I love every part of you, every thought and word... the entire complex, fascinating bundle of all the things you are. I want you with ten different kinds of need at once. I love all the seasons of you, the way you are now, the thought of how much more beautiful you'll be in the decades to come. I love you for being the answer to every question my heart could ask. And it seemed so easy, once he capitulated. It seemed natural and right. Kev wasn't certain if he was surrendering to Win or to his own passion for her. Only that there was no more holding back. He would take her. And he would give her everything he had, every part of his soul, even the broken pieces.

Radomosity, thought Artemis. And he felt like weeping.

It will be difficult to break the habits of thinking Abnegation instilled in me, like tugging a single thread from a complex work of embroidery. But I will find new habits, new thoughts, new rules. I will become something else.

Whether we like it or not, we are puppets of our emotions. We make complex decisions by consulting our feelings, not our thoughts. Against our best intentions, we substitute the question, “What do I think about this?” with “How do I feel about this?” So, smile! Your future depends on it.

The complex interplay between our external environment and our internal psychological processes, the dual nature of psychological disruption—both destructive and constructively thought-provoking—is a profound challenge in our human experience. ("Then everything was capsizing.”)

Orion nodded, then asked, “Dwarf cheese?” “Cheese made by dwarfs.” “Oh,” said Orion, relieved. “They make it. It’s not actually . . .” “No. What a horrible thought.” “Exactly.

I know what cancer was. How is it like humankind?" Sek Hardeen's perfectly modulated, softly accented tones showed a hint of agitation. "We have spread out through the galaxy like cancer cells through a living body, Duré. We multiply without thought to the countless life forms that must die or be pushed aside so that we may breed and flourish. We eradicate competing forms of intelligent life.

We only know a tiny proportion about the complexity of the natural world. Wherever you look, there are still things we don’t know about and don’t understand. [...] There are always new things to find out if you go looking for them.

When Dani was about 1,000 feet above the ground, her direction changed from vertical to horizontal. She sped east at high speed. She estimated her speed to be many hundreds of kilometers per hour. As she thought about it, if she was going to make this trip in one hour, her speed would have to be about the speed of a jet airline. Yet she felt no wind, nor cold, whatsoever.

Schools train you to be ignorant with style [...] they prepare you to be a usable victim for a military industrial complex that needs manpower. As long as you're just smart enough to do a job and just dumb enough to swallow what they feed you, you're going to be alright [...] So I believe that schools mechanically and very specifically try and breed out any hint of creative thought in the kids that are coming up.

Nature may reach the same result in many ways. Like a wave in the physical world, in the infinite ocean of the medium which pervades all, so in the world of organisms, in life, an impulse started proceeds onward, at times, may be, with the speed of light, at times, again, so slowly that for ages and ages it seems to stay, passing through processes of a complexity inconceivable to men, but in all its forms, in all its stages, its energy ever and ever integrally present. A single ray of light from a distant star falling upon the eye of a tyrant in bygone times may have altered the course of his life, may have changed the destiny of nations, may have transformed the surface of the globe, so intricate, so inconceivably complex are the processes in Nature. In no way can we get such an overwhelming idea of the grandeur of Nature than when we consider, that in accordance with the law of the conservation of energy, throughout the Infinite, the forces are in a perfect balance, and hence the energy of a single thought may determine the motion of a universe.

In the abstract, it might be tempting to imagine that irreducible complexity simply requires multiple simultaneous mutations - that evolution might be far chancier than we thought, but still possible. Such an appeal to brute luck can never be refuted... Luck is metaphysical speculation; scientific explanations invoke causes.

There were dozens of papers with complex numerical and alchemial figuring on them, and even a piece of stationary that began My beautiful one in Sebastian's cramped handwriting. She spared a moment to wonder who on earth Sebastian's beautiful one could be--she hadn't thought of him as someone who ever had romantic feelings about anyone.

Modern work demands knowledge transfer: the ability to apply knowledge to new situations and different domains. Our most fundamental thought processes have changed to accommodate increasing complexity and the need to derive new patterns rather than rely only on familiar ones. Our conceptual classification schemes provide a scaffolding for connecting knowledge, making it accessible and flexible.

The human mind delights in finding pattern—so much so that we often mistake coincidence or forced analogy for profound meaning. No other habit of thought lies so deeply within the soul of a small creature trying to make sense of a complex world not constructed for it.

With our limited senses and consciousness, we only glimpse a small portion of reality. Furthermore, everything in the universe is in a state of constant flux. Simple words and thoughts cannot capture this flux or complexity. The only solution for an enlightened person is to let the mind absorb itself in what it experiences, without having to form a judgment on what it all means. The mind must be able to feel doubt and uncertainty for as long as possible. As it remains in this state and probes deeply into the mysteries of the universe, ideas will come that are more dimensional and real than if we had jumped to conclusions and formed judgments early on.

Labeling yourself is not only self-defeating, it is irrational. Your self cannot be equated with any one thing you do. Your life is a complex and ever-changing flow of thoughts, emotions, and actions. To put it another way, you are more like a river than a statue. Stop trying to define yourself with negative labels—they

Not only does my world revolve around her, but she is my world. She's not just my reason for breathing, she's air itself. She's the meaning behind every one of my thoughts, every thrum of my pulse, every whisper of my conscience. She's my entire everything. It's as simple and as complex as that.

The act of consciousness is central; otherwise we are overrun by the complexes. The hero in each of us is required to answer the call of individuation. We must turn away from the cacaphony of the outerworld to hear the inner voice. When we can dare to live its promptings, then we achieve personhood. We may become strangers to those who thought they knew us, but at least we are no longer strangers to ourselves.

Love? I always thought love was just something that ate away your sanity, left you with an inferiority complex, and filled you with jealousy...and bitterness. Noi-chan told me all about love... and now I know the truth. Love is an illusion. Nothing more than that. Anyway, it has nothing to do with me. <3 So many people get hung up on love while life passes them by.

I learned that the world of men as it exists today is a bureaucracy. This is an obvious truth, of course, though it is also one the ignorance of which causes great suffering. “But moreover, I discovered, in the only way that a man ever really learns anything important, the real skill that is required to succeed in a bureaucracy. I mean really succeed: do good, make a difference, serve. I discovered the key. This key is not efficiency, or probity, or insight, or wisdom. It is not political cunning, interpersonal skills, raw IQ, loyalty, vision, or any of the qualities that the bureaucratic world calls virtues, and tests for. The key is a certain capacity that underlies all these qualities, rather the way that an ability to breathe and pump blood underlies all thought and action. “The underlying bureaucratic key is the ability to deal with boredom. To function effectively in an environment that precludes everything vital and human. To breathe, so to speak, without air. “The key is the ability, whether innate or conditioned, to find the other side of the rote, the picayune, the meaningless, the repetitive, the pointlessly complex. To be, in a word, unborable. “It is the key to modern life. If you are immune to boredom, there is literally nothing you cannot accomplish.

You might think this an unfair moral problem to force upon a simple window washer, but there’s a certain arrogance in that kind of reasoning. A window washer can think, same as anyone else, and their lives are no less complex. And as I’ve warned you, “simple” labor often leaves plenty of time for thought. Yes, intellectuals and scholars are paid to think deep thoughts—but those thoughts are often owned by others. It is a great irony that society tends to look down on those who sell their bodies, but not on those who lease out their minds.

The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo Sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

I saw a meme the other day with a picture of Marilyn Manson and Robin Williams. It said about the former, this isn’t the face of depression, and about the latter, this is. This really struck a chord and it’s been on my mind since then. As someone who has continuously dipped in and out of chronic depression and anxiety for close to three decades now, and I’ve never previously spoken about the subject, I finally thought it was time I did. These days it’s trendy for people to think they’re cool and understanding about mental illness, posting memes and such to indicate so. But the reality is far different to that. It seems most people think if they publicly display such understanding then perhaps a friend will come to them, open up, and calmly discuss their problems. This will not happen. For someone in that seemingly hopeless void of depression and anxiety the last thing they are likely to do is acknowledge it, let alone talk about it. Even if broached by a friend they will probably deny there is a problem and feel even more distanced from the rest of the world. So nobody can do anything to help, right? No. If right now you suspect one of your friends is suffering like this then you’re probably right. If right now you think that none of your friends are suffering like this then you’re probably wrong. By all means make your public affirmations of understanding, but at least take on board that an attempt to connect on this subject by someone you care about could well be cryptic and indirect. When we hear of celebrities who suffered and finally took their own lives the message tends to be that so many close friends had no idea. This is woeful, but it’s also great, right? Because by not knowing there was a problem there is no burden of responsibility on anyone else. This is another huge misconception, that by acknowledging an indirect attempt to connect on such a complex issue that somehow you are accepting responsibility to fix it. This is not the case. You don’t have to find a solution. Maybe just listen. Many times over the years I’ve seen people recoil when they suspect that perhaps that is the direct a conversation is about to turn, and they desperately scramble for anything that can immediately change the subject. By acknowledging you’ve heard and understood doesn’t mean you are picking up their burden and carrying it for them. Anyway, I’ve said my piece. And please don’t think this is me reaching out for help. If this was my current mindset the last thing I’d ever do is write something like this, let alone share it.

And that is enough to raise your thoughts to what may happen when the redeemed soul, beyond all hope and nearly beyond belief, learns at last that she has pleased Him whom she was created to please. There will be no room for vanity then. She will be free from the miserable illusion that it is her doing. With no taint of what we should now call self-approval she will most innocently rejoice in the thing that God has made her to be, and the moment which heals her old inferiority complex forever will also drown her pride… Perfect humility dispenses with modesty.

We have a language that is full of ambiguities; we have a way of expressing ourselves that is often complex and elusive, poetic and modulated; all our thoughts can be rendered with absolute clarity if we bother to put the right dots and squiggles between the words in the right places. Proper punctuation is both the sign and the cause of clear thinking. If it goes, the degree of intellectual impoverishment we face is unimaginable.

The thought that the Mayan culture managed to calculate the Earth’s passing through the plane of the Milky Way galaxy never failed to fascinate Chuck. It was December of 2012 that had marked the end of the Mayan calendar and also saw the Earth pass through that plane, the winter equinox of 2012, to be precise. Of course, that exact date had been disproved. The Mayans hadn’t accounted for leap year. How could an ancient culture have calculated such a complex 26,000 year celestial cycle yet not figure in leap year? Yet another puzzle. Maybe it was this rare event that accounted for the appearance of his comet. His comet. Maybe he could be the one to officially make the discovery.

You can't just decide to be happy." "No, you can't. But you can sure as hell decide to be miserable. Is that what you want? Do you want to be the asshole who went to Fillory and was miserable there? Even in Fillory? Because that's who you are right now." There was something true about what Alice was saying. But he couldn't grasp it. It was too complex, or too simple. Too something...It was strange: he's thought that doing magic was the hardest thing he would ever do, but the rest of it was so much harder. It turned out that magic was the easy part.

Those dreaming of the perfect match are outnumbered by those who don't really want it at all, though perhaps they can't admit it. After all, our culture makes individual freedom, autonomy and fulfillment the very highest values, and thoughtful people know deep down that any love relationship at all means the loss of all three. You can say, 'I want someone who will accept me just as I am,' but in your heart of hearts you know that you are not perfect, that there are plenty of things about you that need to be changed, and that anyone who gets to know you up close and personal will want to change them.

He had learned some of the things that every man must find out for himself, and he had found out about them as one has to find out--through error and through trial, through fantasy and illusion, through falsehood and his own damn foolishness, through being mistaken and wrong and an idiot and egotistical and aspiring and hopeful and believing and confused. Each thing he learned was so simple and obvious, once he grasped it, that he wondered why he had not always known it. And what had he learned? A philosopher would not think it much, perhaps, and yet in a simple human way it was a good deal. Just by living, my making the thousand little daily choices that his whole complex of heredity, environment, and conscious thought, and deep emotion had driven him to make, and by taking the consequences, he had learned that he could not eat his cake and have it, too. He had learned that in spite of his strange body, so much off scale that it had often made him think himself a creature set apart, he was still the son and brother of all men living. He had learned that he could not devour the earth, that he must know and accept his limitations. He realized that much of his torment of the years past had been self-inflicted, and an inevitable part of growing up. And, most important of all for one who had taken so long to grow up, he thought he had learned not to be the slave of his emotions.

I am continuously struck by how frequently the various thought processes of the inner critic trigger overwhelming emotional flashbacks. This is because the PTSD-derived inner critic weds shame and self-hate about imperfection to fear of abandonment, and mercilessly drive the psyche with the entwined serpents of perfectionism and endangerment. Recovering individuals must learn to recognize, confront and disidentify from the many inner critic processes that tumble them back in emotional time to the awful feelings of overwhelming fear, self-hate, hopelessness and self-disgust that were part and parcel of their original childhood abandonment.

You could see the signs of female aging as diseased, especially if you had a vested interest in making women too see them your way. Or you could see that a woman is healthy if she lives to grow old; as she thrives, she reacts and speaks and shows emotion, and grows into her face. Lines trace her thought and radiate from the corners of her eyes as she smiles. You could call the lines a network of 'serious lesions' or you could see that in a precise calligraphy, thought has etched marks of concentration between her brows, and drawn across her forehead the horizontal creases of surprise, delight, compassion and good talk. A lifetime of kissing, of speaking and weeping, shows expressively around a mouth scored like a leaf in motion. The skin loosens on her face and throat, giving her features a setting of sensual dignity; her features grow stronger as she does. She has looked around in her life and it shows. When gray and white reflect in her hair, you could call it a dirty secret or you could call it silver or moonlight. Her body fills into itself, taking on gravity like a bather breasting water, growing generous with the rest of her. The darkening under her eyes, the weight of her lids, their minute cross-hatching, reveal that what she has been part of has left in her its complexity and richness. She is darker, stronger, looser, tougher, sexier. The maturing of a woman who has continued to grow is a beautiful thing to behold.

Cindy, have you heard of the second law of thermodynamics?” “Yes. Something about heat energy can never be created or destroyed?” “That’s the first law of thermodynamics. The second one is this…all organized systems tend to slide slowly into chaos and disorder. Energy tends to run down. The universe itself heads inevitably towards darkness and stasis. Our own star system eventually will die, the sun will become a red giant, and the earth will be swallowed by the red giant.” “Cheery thought.” “But mathematics has altered this concept; rather one particular mathematician. His name was Ilya Prigogine, a Belgian mathematician.” “Who and what does that have to do with your being a PI and a great psychologist?” “Are you being sarcastic? Of course you are. Anyway, what I was trying to say was that Prigogine used the analogy of a walled city and open city. The walled city is isolated from its surroundings and will run down, decay, and die. The open city will have an exchange of materials and energy with its surroundings and will become larger and more complex; capable of dissipating energy even as it grows. So my point is, this analogy very much pertains to a certain female. The walled person versus the open person. The walled person will eventually decline, fade, and decay.

Its substance was known to me. The crawling infinity of colours, the chaos of textures that went into each strand of that eternally complex tapestry…each one resonated under the step of the dancing mad god, vibrating and sending little echoes of bravery, or hunger, or architecture, or argument, or cabbage or murder or concrete across the aether. The weft of starlings’ motivations connected to the thick, sticky strand of a young thief’s laugh. The fibres stretched taut and glued themselves solidly to a third line, its silk made from the angles of seven flying buttresses to a cathedral roof. The plait disappeared into the enormity of possible spaces. Every intention, interaction, motivation, every colour, every body, every action and reaction, every piece of physical reality and the thoughts that it engendered, every connection made, every nuanced moment of history and potentiality, every toothache and flagstone, every emotion and birth and banknote, every possible thing ever is woven into that limitless, sprawling web. It is without beginning or end. It is complex to a degree that humbles the mind. It is a work of such beauty that my soul wept... ..I have danced with the spider. I have cut a caper with the dancing mad god.

The bad psychological material is not a sin but a disease. It does not need to be repented of, but to be cured. And by the way, that is very important. Human beings judge one another by their external actions. God judges them by their moral choices. When a neurotic who has a pathological horror of cats forces himself to pick up a cat for some good reason, it is quite possible that in God's eyes he has shown more courage than a healthy man may have shown in winning the V.C. When a man who has been perverted from his youth and taught that cruelty is the right thing does dome tiny little kindness, or refrains from some cruelty he might have committed, and thereby, perhaps, risks being sneered at by his companions, he may, in God's eyes, be doing more than you and I would do if we gave up life itself for a friend. It is as well to put this the other way round. Some of us who seem quite nice people may, in fact, have made so little use of a good heredity and good upbringing that we are really worse than those whom we regard as fiends. Can we be quite certain how we should have behaved if we had been saddled with the psychological outfit, and then with the bad upbringing, and then with the power, say, of Himmler? That is why Christians are told not to judge. We see only the results which a man's choices make out of his raw material. But God does not judge him on the raw material at all, but on what he has done with it. Most of the man's psychological makeup is probably due to his body: when his body dies all that will fall off him, and the real central man, the thing that chose, that made the best or worst out of this material, will stand naked. All sorts of nice things which we thought our own, but which were really due to a good digestion, will fall off some of us: all sorts of nasty things which were due to complexes or bad health will fall off others. We shall then, for the first time, see every one as he really was. There will be surprises.

Brother Cavil: In all your travels, have you ever seen a star go supernova? ... I have. I saw a star explode and send out the building blocks of the Universe. Other stars, other planets and eventually other life. A supernova! Creation itself! I was there. I wanted to see it and be part of the moment. And you know how I perceived one of the most glorious events in the universe? With these ridiculous gelatinous orbs in my skull! With eyes designed to perceive only a tiny fraction of the EM spectrum. With ears designed only to hear vibrations in the air. ... I don't want to be human! I want to see gamma rays! I want to hear X-rays! And I want to - I want to smell dark matter! Do you see the absurdity of what I am? I can't even express these things properly because I have to - I have to conceptualize complex ideas in this stupid limiting spoken language! But I know I want to reach out with something other than these prehensile paws! And feel the wind of a supernova flowing over me! I'm a machine! And I can know much more! I can experience so much more. But I'm trapped in this absurd body! And why? Because my five creators thought that God wanted it that way!

I guess that sometimes it just takes a long walk through the darkness, a long walk through the darkest shadows and corners of your soul to realize that those are a part of you as well, that you've created through your experiences and thoughts those parts within yourself and as much as you can choose to fear them and repress them, they will require your attention one day, they will need your care and acceptance before you can clean them away and turn the lights on. For you refuse to shine the light on something that is imperfect, because you fear judgement and rejection, but you can always choose to look towards the light as the only source of true beauty and love that can help you in the cleaning process. Healing, after a long time of struggle and mess is a complex process, but a necessary one nevertheless. We are so overwhelmed by the amount of work it requires that we so often choose to run away from the light, hide in our dark corner and hope that we will never be found, hope that we will never be seen, or desperately look outwards for that love and compassion that we can no longer find within ourselves, for our soul's light no longer shines as it used to. And sometimes we just find those people that can see the light beneath all that dust and darkness that's been pilled up, those kind of light workers that understand our broken souls and manage to pick us up and see the beauty within us, when we find it so hard to see it ourselves. Sometimes I get so tired of separation, of division, of groups and different religions and belief systems. Even if you do find the truth, once you've put it into words, books and rules it already becomes distorted by the mind into something that is no longer truth. So I no longer hope for understanding, no longer hope for the opinion of a judgemental mind, but I hope to find the words that touch the soul before the mind, I hope to find the touch that warms the heart from deep inside, and hope to find that far away abandoned part of me which I've left behind.

And Ross again knew himself to be happy-in a new and less ephemeral way than before. He was filled with a queer sense of enlightnment. It seemed to him that all his life had moved to this pinpoint of time down the scattered threads of twenty years; from his old childhood running thoughtless and barefoot in the sun on Hendrawna sands, from Demelza's birth in the squarlor of a mining cottage, from the plains of Virginia and the trampled fairgrounds of Redruth, from the complex impulses which had governed Elizabeth's choice of Francis and from the simple philosophies of Demelza's own faith, all had been animated to a common end-and that end a moment of enlightenment and understanding and completion. Someone--a Latin poet--had defined eternity as no more than this: to hold and possess the whole fullness of life in one moment, here and now, past and present and to come. He thought: if we could only stop here. Not when we get home, not leaving Trenwith, but here, here reaching the top of the hill out of Sawle, dusk wiping out the edges of the land and Demelza walking and humming at my side.

The artist is the creator of beautiful things. To reveal art and conceal the artist is art's aim. The critic is he who can translate into another manner or a new material his impression of beautiful things. The highest as the lowest form of criticism is a mode of autobiography. Those who find ugly meanings in beautiful things are corrupt without being charming. This is a fault. Those who find beautiful meanings in beautiful things are the cultivated. For these there is hope. They are the elect to whom beautiful things mean only beauty. There is no such thing as a moral or an immoral book. Books are well written, or badly written. That is all. The nineteenth century dislike of realism is the rage of Caliban seeing his own face in a glass. The nineteenth century dislike of romanticism is the rage of Caliban not seeing his own face in a glass. The moral life of man forms part of the subject-matter of the artist, but the morality of art consists in the perfect use of an imperfect medium. No artist desires to prove anything. Even things that are true can be proved. No artist has ethical sympathies. An ethical sympathy in an artist is an unpardonable mannerism of style. No artist is ever morbid. The artist can express everything. Thought and language are to the artist instruments of an art. Vice and virtue are to the artist materials for an art. From the point of view of form, the type of all the arts is the art of the musician. From the point of view of feeling, the actor's craft is the type. All art is at once surface and symbol. Those who go beneath the surface do so at their peril. Those who read the symbol do so at their peril. It is the spectator, and not life, that art really mirrors. Diversity of opinion about a work of art shows that the work is new, complex, and vital. When critics disagree, the artist is in accord with himself. We can forgive a man for making a useful thing as long as he does not admire it. The only excuse for making a useless thing is that one admires it intensely. All art is quite useless.

I mention all this to make the point that if you were designing an organism to look after life in our lonely cosmos, to monitor where it is going and keep a record of where it has been, you wouldn't choose human beings for the job. But here's an extremely salient point: we have been chosen, by fate or Providence or whatever you wish to call it. It's an unnerving thought that we may be living the universe's supreme achievement and its worst nightmare simultaneously. Because we are so remarkably careless about looking after things, both when alive and when not, we have no idea-- really none at all-- about how many things have died off permanently, or may soon, or may never, and what role we have played in any part of the process. In 1979, in the book The Sinking Ark, the author Norman Myers suggested that human activities were causing about two extinctions a week on the planet. By the early 1990s he had raised the figure to about some six hundred per week. (That's extinctions of all types-- plants, insects, and so on as well as animals.) Others have put the figure ever higher-- to well over a thousand a week. A United Nations report of 1995, on the other hand, put the total number of known extinctions in the last four hundred years at slightly under 500 for animals and slightly over 650 for plants-- while allowing that this was "almost certainly an underestimate," particularly with regard to tropical species. A few interpreters think most extinction figures are grossly inflated. The fact is, we don't know. Don't have any idea. We don't know when we started doing many of the things we've done. We don't know what we are doing right now or how our present actions will affect the future. What we do know is that there is only one planet to do it on, and only one species of being capable of making a considered difference. Edward O. Wilson expressed it with unimprovable brevity in The Diversity of Life: "One planet, one experiment." If this book has a lesson, it is that we are awfully lucky to be here-- and by "we" i mean every living thing. To attain any kind of life in this universe of ours appears to be quite an achievement. As humans we are doubly lucky, of course: We enjoy not only the privilege of existence but also the singular ability to appreciate it and even, in a multitude of ways, to make it better. It is a talent we have only barely begun to grasp. We have arrived at this position of eminence in a stunningly short time. Behaviorally modern human beings-- that is, people who can speak and make art and organize complex activities-- have existed for only about 0.0001 percent of Earth's history. But surviving for even that little while has required a nearly endless string of good fortune. We really are at the beginning of it all. The trick, of course, is to make sure we never find the end. And that, almost certainly, will require a good deal more than lucky breaks.