"Progress, far from consisting in change, depends on retentiveness. When change is absolute there remains no being to improve and no direction is set for possible improvement: and when experience is not retained, as among savages, infancy is perpetual. Those who cannot remember the past are condemned to repeat it."

"Fanaticism consists in redoubling your efforts when you have forgotten your aim."

"That life is worth living is the most necessary of assumptions and, were it not assumed, the most impossible of conclusions."

"Happiness is the only sanction of life; where happiness fails, existence remains a mad and lamentable experiment."

"Even the most inspired verse, which boasts not without a relative justification to be immortal, becomes in the course of ages a scarcely legible hieroglyphic; the language it was written in dies, a learned education and an imaginative effort are requisite to catch even a vestige of its original force. Nothing is so irrevocable as mind."

"[Everything] ideal has a natural basis and everything natural an ideal development."

"Beauty is a pledge of the possible conformity between the soul and nature, and consequently a ground of faith in the supremacy of the good."

"Beauty as we feel it is something indescribable: what it is or what it means can never be said."

"On fact, the whole machinery of our intelligence, our general ideas and laws, fixed and external objects, principles, persons, and gods, are so many symbolic, algebraic expressions. They stand for experience; experience which we are incapable of retaining and surveying in its multitudinous immediacy. We should flounder hopelessly, like the animals, did we not keep ourselves afloat and direct our course by these intellectual devices. Theory helps us to bear our ignorance of fact."

"Santayana, indeed, is the Moses of the new naturalism, who discerned the promised land from afar but still wanders himself in the desert realms of being."

""There is no God, and Mary is his mother." Often, almost certainly incorrectly, attributed to Santayana himself. More plausibly attributed to Robert Lowell, as a sardonic description of Santayana's philosophy."

"In America literary reputations come and go so swiftly," I complained, fatuously. [Santayana's] answer was swift. "It would be insufferable if they did not."

"But what a perfection of rottenness in a philosophy!"

"I revelled in the keen analysis of William James, Josiah Royce and young George Santayana."

"The writer-philosopher George Santayana is credited with the phrase: “Those who cannot remember the past are condemned to repeat it.” Yet here we are, repeating that of just 52 years ago. Let us pray that come 2072, Americans then have at last heeded Santayana's warning and Dr. King’s dream is no longer words in a speech but reality being lived."

"Books are “imaginative rehearsals for living,” stated novelist George Santayana. They are also a great equalizer in a diverse society. Book reading helps prepare a child for mental liberation from ignorance, fear, and falsehood."

"The famous George Santayana quote: “Those who forget the past are condemned to repeat it.” That's the thing, though. None of us have forgotten. Darned if we're not repeating it anyway..."

"The working of great administrations is mainly the result of a vast mass of routine, petty malice, self-interest, carelessness and sheer mistake. Only a residual fraction is thought."

"The earth has music for those who listen."

"Religions are not true or false, but better or worse."

"A child educated only at school is an uneducated child."

"The idea of Christ is much older than Christianity."

"I leave you but the sound of many a word In mocking echoes haply overheard, I sang to heaven. My exile made me free, from world to world, from all worlds carried me."

"Skepticism, like chastity, should not be relinquished too readily."

"They [the wise spirits of antiquity in the first circle of Dante's Inferno] are condemned, Dante tells us, to no other penalty than to live in desire without hope, a fate appropriate to noble souls with a clear vision of life."

"There is nothing impossible in the existence of the supernatural: its existence seems to me decidedly probable."

"Although a poem be not made by counting of syllables upon the fingers, yet "numbers" is the most poetical synonym we have for verse, and "measure" the most significant equivalent for beauty, for goodness, and perhaps even for truth. Those early and profound philosophers, the followers of Pythagoras, saw the essence of all things in number, and it was by weight, measure, and number, as we read in the Bible, that the Creator first brought Nature out of the void."

"In the Gospels, for instance, we sometimes find the kingdom of heaven illustrated by principles drawn from observation of this world rather than from an ideal conception of justice; ... They remind us that the God we are seeking is present and active, that he is the living God; they are doubtless necessary if we are to keep religion from passing into a mere idealism and God into the vanishing point of our thought and endeavour."

"O world, thou choosest not the better part! It is not wisdom to be only wise, And on the inward vision close the eyes, But it is wisdom to believe the heart. Columbus found a world, and had no chart, Save one that faith deciphered in the skies; To trust the soul's invincible surmise Was all his science and his only art."

"I was still “at the church door”. Yet in belief, in the clarification of my philosophy, I had taken an important step. I no longer wavered between alternative views of the world, to be put on or taken off like alternative plays at the theatre. I now saw that there was only one possible play, the actual history of nature and of mankind, although there might well be ghosts among the characters and soliloquies among the speeches. Religions, all religions, and idealistic philosophies, all idealistic philosophies, were the soliloquies and the ghosts. They might be eloquent and profound. Like Hamlet's soliloquy they might be excellent reflective criticisms of the play as a whole. Nevertheless they were only parts of it, and their value as criticisms lay entirely in their fidelity to the facts, and to the sentiments which those facts aroused in the critic."

"In solitude it is possible to love mankind; in the world, for one who knows the world, there can be nothing but secret or open war."

"Animals are born and bred in litters. Solitude grows blessed and peaceful only in old age."

"... I once shook hands with Longfellow at a garden party in 1881; and I often saw Dr. Holmes, who was our neighbor in Beacon Street: but Emerson I never saw."

"At midday the daily food of all Spaniards was the puchero or cocido, as the dish is really called which the foreigners call pot-pourri or olla podrida. This contains principally yellow chick-peas, with a little bacon, some potatoes or other vegetables and normally also small pieces of beef or sausage, all boiled in one pot at a very slow fire; the liquid of the same makes the substantial broth that is served first."

"All his life he [the American] jumps into the train after it has started and jumps out before it has stopped; and he never once gets left behind, or breaks a leg."

"American life is a powerful solvent. As it stamps the immigrant, almost before he can speak English, with an unmistakable muscular tension, cheery self-confidence and habitual challenge in the voice and eyes, so it seems to neutralize every intellectual element, however tough and alien it may be, and to fuse it in the native good-will, complacency, thoughtlessness, and optimism."

"Religion in its humility restores man to his only dignity, the courage to live by grace."

"All living souls welcome whatsoever they are ready to cope with; all else they ignore, or pronounce to be monstrous and wrong, or deny to be possible."

"The young man who has not wept is a savage, and the old man who will not laugh is a fool."

"The soul, too, has her virginity and must bleed a little before bearing fruit."

"Philosophers are as jealous as women. Each wants a monopoly of praise."

"[The empiricist] thinks he believes only what he sees, but he is much better at believing than at seeing."

"Skepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness."

"Friendship is almost always the union of a part of one mind with the part of another; people are friends in spots."

"Profound skepticism is favorable to conventions, because it doubts that the criticism of conventions is any truer than they are."

"The living have never shown me how to live."

"My atheism, like that of Spinoza, is true piety towards the universe and denies only gods fashioned by men in their own image, to be servants of their human interests."

"Only the dead have seen the end of war."

"I like to walk about amidst the beautiful things that adorn the world; but private wealth I should decline, or any sort of personal possessions, because they would take away my liberty."