Harold Urey Quotes

Life is not a miracle. It is a natural phenomenon, and can be expected to appear whenever there is a planet whose conditions duplicate those of the earth. [Stating how planets supporting life cannot be rare.]

[My study of the universe] leaves little doubt that life has occurred on other planets. I doubt if the human race is the most intelligent form of life.

IN 1953, STANLEY Miller, a graduate student at the University of Chicago, took two flasks—one containing a little water to represent a primeval ocean, the other holding a mixture of methane, ammonia, and hydrogen sulphide gases to represent Earth’s early atmosphere—connected them with rubber tubes, and introduced some electrical sparks as a stand-in for lightning. After a few days, the water in the flasks had turned green and yellow in a hearty broth of amino acids, fatty acids, sugars, and other organic compounds. “If God didn’t do it this way,” observed Miller’s delighted supervisor, the Nobel laureate Harold Urey, “He missed a good bet.

[Pure research] is worth every penny it costs.

Dr. Harold Urey suffered a nervous breakdown after he saw that instead of bringing an end to war the automatic bomb led o the Cold War-era mass production of nuclear weapons.

I looked for it [heavy hydrogen, deuterium] because I thought it should exist. I didn't know it would have industrial applications or be the basic for the most powerful weapon ever known [the nuclear bomb] ... I thought maybe my discovery might have the practical value of, say, neon in neon signs. [He was awarded the 1931 Nobel Prize in Chemistry for discovering deuterium.]

Stanley Miller and Harold Urey, was to simulate the conditions on Earth in primordial times, three or four billion years ago, when life appeared for the first time. The experiments were intended to see if they could make something come alive using nothing but nonliving chemicals. Do you know what emerged? Not life, but something fascinating all the same. The chemicals gave rise to significant chemical compounds: a handful of amino acids, essential components in the chemistry of life. Amino acids are molecules that hook together to form the proteins that run almost every aspect of biology.

On May 25, Szilard and two colleagues—Walter Bartky of the University of Chicago and Harold Urey of Columbia University—appeared at the White House, only to be told that Truman had referred them to James F. Byrnes, soon to be designated secretary of state. Dutifully, they traveled to Byrnes’ home in Spartanburg, South Carolina, for a meeting that concluded, to say the least, unproductively. When Szilard explained that the use of the atomic bomb against Japan risked turning the Soviet Union into an atomic power, Byrnes interrupted, “General Groves tells me there is no uranium in Russia.” No, Szilard replied, the Soviet Union has plenty of uranium. Byrnes then suggested that the use of the atomic bomb on Japan would help persuade Russia to withdraw its troops from Eastern Europe after the war. Szilard was “flabbergasted by the assumption that rattling the bomb might make Russia more manageable.” “Well,” Byrnes said, “you come from Hungary—you would not want Russia to stay in Hungary indefinitely.

In view of the cataclysmic changes that followed, it is significant that the initiative in bringing about the release of nuclear energy, the central event in the recrudescence of the megamachine in modern form, was taken, not by the central government, but by a small group of physicists. Not less significant is the fact that these advocates of nuclear power were themselves unusually humane and morally sensitive people, notably, Albert Einstein, Enrico Fermi, Leo Szilard, Harold Urey. These were the last scientists one would accuse of seeking to establish a new priesthood capable of assuming autocratic authority and wielding satanic power. Those unpleasant characteristics, which have become all too evident in later collaborators and successors, were derived from the new instruments commanded by the megamachine and the dehumanized concepts that were rapidly incorporated in its whole working program. As for the initiators of the atom bomb, it was their innocence that concealed from them, at least in the initial stages, the dreadful ultimate consequences of their effort.

More than fifty years have passed since the flask experiments by Stanley Miller and Harold Urey rekindled the primordial soup hypothesis for the origin of life. Scientists now realize, however, that generating miniscule amounts of a few amino acids is irrelevant to the origin of life because the chemicals in Miller and Urey’s experiment were exposed to neither oxygen nor ultraviolet light. The fact that Earth never possessed measurable quantities of prebiotics (see p. 73) and that the universe appears devoid of reservoirs for life’s fundamental chemical building blocks (see p. 74) also argues for the famed experiment’s irrelevance. As far back as 1973, a deep sense of frustration over any possible naturalistic explanation for life’s origin on Earth or anywhere else within the vast reaches of interstellar space led Francis Crick (who shared the Nobel Prize for the discovery of the double helix nature of DNA) and Leslie Orgel (one of the world’s preeminent origin-of-life researchers) to suggest that intelligent aliens must have salted Earth with bacteria about 3.8 billion years ago.[24] This suggestion, however intriguing or bizarre, fails to answer the question of where the aliens might have come from. It also contradicts evidence that shows intelligent life could not have arrived on the cosmic scene any sooner than about 13.7 billion years after the cosmic origin event. The implausibility of interstellar space travel also remains an intractable problem. Ruling out a visit by aliens from a planetary system far, far away narrows the reasonable options down to one: Something or Someone from beyond the physics and dimensions of the universe, who is not subject to them, placed life and humanity in the only location in the universe at the only time in cosmic history where and when such creatures could survive and thrive.

I knew personally many figures in this novel: Harold Urey, who greeted me at the grad students reception at UCSD in 1963; Karl Cohen, my father-in-law;