Thomas Aquinas Quotes

To one who has faith, no explanation is necessary. To one without faith, no explanation is possible.

Beware the man of a single book.

We must love them both, those whose opinions we share and those whose opinions we reject, for both have labored in the search for truth, and both have helped us in finding it.

The things that we love tell us what we are.

There is nothing on this earth more to be prized than true friendship.

Fear is such a powerful emotion for humans that when we allow it to take us over, it drives compassion right out of our hearts.

Grant me, O Lord my God, a mind to know you, a heart to seek you, wisdom to find you, conduct pleasing to you, faithful perseverance in waiting for you, and a hope of finally embracing you. Amen.

The Study of philosophy is not that we may know what men have thought, but what the truth of things is.

Sorrow can be alleviated by good sleep, a bath and a glass of wine

The soul is like an uninhabited world that comes to life only when God lays His head against us.

Because philosophy arises from awe, a philosopher is bound in his way to be a lover of myths and poetic fables. Poets and philosophers are alike in being big with wonder.

Better to illuminate than merely to shine to deliver to others contemplated truths than merely to contemplate.

Wonder is the desire of knowledge.

How is it they live in such harmony, the billions of stars, when most men can barely go a minute without declaring war in their minds?

Most men seem to live according to sense rather than reason.

I would rather feel compassion than know the meaning of it. I would hope to act with compassion without thinking of personal gain.

Rarely affirm, seldom deny, always distinguish.

Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

For those with faith, no evidence is necessary; for those without it, no evidence will suffice.

Three things are necessary for the salvation of man: to know what he ought to believe; to know what he ought to desire; and to know what he ought to do.

Love follows knowledge.

If the highest aim of a captain were to preserve his ship, he would keep it in port forever.

There must be must be a first mover existing above all – and this we call God.

To love is to will the good of the other.

Reading list (1972 edition)[edit] 1. Homer – Iliad, Odyssey 2. The Old Testament 3. Aeschylus – Tragedies 4. Sophocles – Tragedies 5. Herodotus – Histories 6. Euripides – Tragedies 7. Thucydides – History of the Peloponnesian War 8. Hippocrates – Medical Writings 9. Aristophanes – Comedies 10. Plato – Dialogues 11. Aristotle – Works 12. Epicurus – Letter to Herodotus; Letter to Menoecus 13. Euclid – Elements 14. Archimedes – Works 15. Apollonius of Perga – Conic Sections 16. Cicero – Works 17. Lucretius – On the Nature of Things 18. Virgil – Works 19. Horace – Works 20. Livy – History of Rome 21. Ovid – Works 22. Plutarch – Parallel Lives; Moralia 23. Tacitus – Histories; Annals; Agricola Germania 24. Nicomachus of Gerasa – Introduction to Arithmetic 25. Epictetus – Discourses; Encheiridion 26. Ptolemy – Almagest 27. Lucian – Works 28. Marcus Aurelius – Meditations 29. Galen – On the Natural Faculties 30. The New Testament 31. Plotinus – The Enneads 32. St. Augustine – On the Teacher; Confessions; City of God; On Christian Doctrine 33. The Song of Roland 34. The Nibelungenlied 35. The Saga of Burnt Njál 36. St. Thomas Aquinas – Summa Theologica 37. Dante Alighieri – The Divine Comedy;The New Life; On Monarchy 38. Geoffrey Chaucer – Troilus and Criseyde; The Canterbury Tales 39. Leonardo da Vinci – Notebooks 40. Niccolò Machiavelli – The Prince; Discourses on the First Ten Books of Livy 41. Desiderius Erasmus – The Praise of Folly 42. Nicolaus Copernicus – On the Revolutions of the Heavenly Spheres 43. Thomas More – Utopia 44. Martin Luther – Table Talk; Three Treatises 45. François Rabelais – Gargantua and Pantagruel 46. John Calvin – Institutes of the Christian Religion 47. Michel de Montaigne – Essays 48. William Gilbert – On the Loadstone and Magnetic Bodies 49. Miguel de Cervantes – Don Quixote 50. Edmund Spenser – Prothalamion; The Faerie Queene 51. Francis Bacon – Essays; Advancement of Learning; Novum Organum, New Atlantis 52. William Shakespeare – Poetry and Plays 53. Galileo Galilei – Starry Messenger; Dialogues Concerning Two New Sciences 54. Johannes Kepler – Epitome of Copernican Astronomy; Concerning the Harmonies of the World 55. William Harvey – On the Motion of the Heart and Blood in Animals; On the Circulation of the Blood; On the Generation of Animals 56. Thomas Hobbes – Leviathan 57. René Descartes – Rules for the Direction of the Mind; Discourse on the Method; Geometry; Meditations on First Philosophy 58. John Milton – Works 59. Molière – Comedies 60. Blaise Pascal – The Provincial Letters; Pensees; Scientific Treatises 61. Christiaan Huygens – Treatise on Light 62. Benedict de Spinoza – Ethics 63. John Locke – Letter Concerning Toleration; Of Civil Government; Essay Concerning Human Understanding;Thoughts Concerning Education 64. Jean Baptiste Racine – Tragedies 65. Isaac Newton – Mathematical Principles of Natural Philosophy; Optics 66. Gottfried Wilhelm Leibniz – Discourse on Metaphysics; New Essays Concerning Human Understanding;Monadology 67. Daniel Defoe – Robinson Crusoe 68. Jonathan Swift – A Tale of a Tub; Journal to Stella; Gulliver's Travels; A Modest Proposal 69. William Congreve – The Way of the World 70. George Berkeley – Principles of Human Knowledge 71. Alexander Pope – Essay on Criticism; Rape of the Lock; Essay on Man 72. Charles de Secondat, baron de Montesquieu – Persian Letters; Spirit of Laws 73. Voltaire – Letters on the English; Candide; Philosophical Dictionary 74. Henry Fielding – Joseph Andrews; Tom Jones 75. Samuel Johnson – The Vanity of Human Wishes; Dictionary; Rasselas; The Lives of the Poets

Faith has to do with things that are not seen, and hope with things that are not in hand.

The truth of our faith becomes a matter of ridicule among the infidels if any Catholic, not gifted with the necessary scientific learning, presents as dogma what scientific scrutiny shows to be false.

It is necessary for the perfection of human society that there should be men who devote their lives to contemplation.

Mercy without justice is the mother of dissolution; justice without mercy is cruelty.

The study of truth requires a considerable effort - which is why few are willing to undertake it out of love of knowledge - despite the fact that God has implanted a natural appetite for such knowledge in the minds of men.

Give us, O Lord, a steadfast heart, which no unworthy affection may drag downwards; give us an unconquered heart, which no tribulation can wear out; give us an upright heart, which no unworthy purpose may tempt aside. Bestow upon us also, O Lord our God, understanding to know you, diligence to seek you, wisdom to find you, and a faithfulness that may finally embrace you; through Jesus Christ our Lord.

Obedience unites us so closely to God that it in a way transforms us into Him, so that we have no other will but His. If obedience is lacking, even prayer cannot be pleasing to God.

God is never angry for His sake, only for ours.

While injustice is the worst of sins, despair is the most dangerous; because when you are in despair you care neither about yourself nor about others.

The happy man in this life needs friends.

A song is the exultation of the mind dwelling on eternal things, bursting forth in the voice.

It was the outstanding fact about St. Thomas [Aquinas] that he loved books and lived on books ... When asked for what he thanked God most, he answered simply, ‘I have understood every page I ever read’.

Man has free choice, or otherwise counsels, exhortations, commands, prohibitions, rewards and punishments would be in vain.

The human mind may perceive truth only through thinking, as is clear from Augustine.

Thomas Aquinas said of suffering, as Aristotle had said of shame, that it was a thing not good in itself; but a thing which might have a certain goodness in particular circumstances. That is to say, if evil is present, pain at recognition of the evil, being a kind of knowledge, is relatively good.

It is not theft, properly speaking, to take secretly and use another's property in a case of extreme need: because that which he takes for the support of his life becomes his own property by reason of that need

Nothing which implies contradiction falls under the omnipotence of God.

Man should not consider his material possessions as his own, but as common to all, so as to share them without hesitation when others are in need

Beware of the person of one book

If you are looking for the way by which you should go, take Christ, because he himself is the way.

The existence of a prime mover- nothing can move itself; there must be a first mover. The first mover is called God.

Grant, O Lord my God, that I may never fall away in success or in failure; that I may not be prideful in prosperity nor dejected in adversity. Let me rejoice only in what unites us and sorrow only in what separates us. May I strive to please no one or fear to displease anyone except Yourself. May I see always the things that are eternal and never those that are only temporal. May I shun any joy that is without You and never seek any that is beside You. O Lord, may I delight in any work I do for You and tire of any rest that is apart from You. My God, let me direct my heart towards You, and in my failings, always repent with a purpose of amendment.

The happy life does not mean loving what we possess, but possessing what we love." Possession of the beloved, St. Thomas holds, takes place in an act of cognition, in seeing, in intuition, in contemplation.

The blessed in the kingdom of heaven will see the punishments of the damned, in order that their bliss be more delightful for them.

It must be said that charity can, in no way, exist along with mortal sin.

Thus the sun which possesses light perfectly, can shine by itself; whereas the moon which has the nature of light imperfectly, sheds only a borrowed light.

The times are never so bad that a good man cannot live in them

One of the most fundamental problems in the spiritual order is that we sense within ourselves the hunger for God, but we attempt to satisfy it with some created good that is less than God. Thomas Aquinas said that the four typical substitutes for God are wealth, pleasure, power, and honor. Sensing the void within, we attempt to fill it up with some combination of these four things, but only by emptying out the self in love can we make the space for God to fill us. The classical tradition referred to this errant desire as "concupiscence," but I believe that we could neatly express the same idea with the more contemporary term "addiction." When we try to satisfy the hunger for God with something less than God, we will naturally be frustrated, and then in our frustration, we will convince ourselves that we need more of that finite good, so we will struggle to achieve it, only to find ourselves again, necessarily, dissatisfied. At this point, a sort of spiritual panic sets in, and we can find ourselves turning obsessively around this creaturely good that can never in principle make us happy.

That the saints may enjoy their beatitude and the grace of God more abundantly they are permitted to see the punishment of the damned in hell.

Since faith rests upon infallible truth, and since the contrary of a truth can never be demonstrated, it is clear that the arguments brought against faith cannot be demonstrations, but are difficulties that can be answered.

He who is not angry when there is just cause for anger is immoral. Why? Because anger looks to the good of justice. And if you can live amid injustice without anger, you are immoral as well as unjust.

Many cry to the Lord that they may win riches, that they may avoid losses; they cry that their family may be established, they ask for temporal happiness, for worldly dignities; and, lastly, they cry for bodily health, which is the patrimony of the poor. For these and suchlike things many cry to the Lord; hardly one cries for the Lord Himself! How easy it is for a man to desire all manner of things from the Lord and yet not desire the Lord Himself! As though the gift could be sweeter than the Giver!

Creator of all things, true source of light and wisdom, origin of all being, graciously let a ray of your light penetrate the darkness of my understanding. Take from me the double darkness in which I have been born, an obscurity of sin and ignorance. Give me a keen understanding, a retentive memory, and the ability to grasp things correctly and fundamentally. Grant me the talent of being exact in my explanations and the ability to express myself with thoroughness and charm. Point out the beginning, direct the progress, and help in the completion.

God Himself is the rule and mode of virtue. Our faith is measured by divine truth, our hope by the greatness of His power and faithful affection, our charity by His goodness. His truth, power and goodness outreach any measure of reason. We can certainly never believe, trust or love God more than, or even as much as, we should. Extravagance is impossible. Here is no virtuous moderation, no measurable mean; the more extreme our activity, the better we are.

Buddhism and Christianity are in one sense parallel and equal; as a mound and a hollow, as a valley and a hill. There is a sense in which that sublime despair is the only alternative to that divine audacity. It is even true that the truly spiritual and intellectual man sees it as sort of dilemma; a very hard and terrible choice. There is little else on earth that can compare with these for completeness. And he who does not climb the mountain of Christ does indeed fall into the abyss of Buddha.