The philosopher forms his principles on an infinity of particular observations. He does not confuse truth with plausibility, he takes for truth what is true, for false what is false, for doubtful what is doubtful, and probable what is probable. The philosophical spirit is thus a spirit of observation and accuracy.
Denis DiderotDoes not vanity itself cease to be blamable, is it not even ennobled, when it is directed to laudable objects, when it confines itself to prompting us to great and generous actions?
Denis DiderotMankind have banned the Divinity from their presence; they have relegated him to a sanctuary; the walls of the temple restrict his view; he does not exist outside of it.
Denis DiderotBut if you will recall the history of our civil troubles, you will see half the nation bathe itself, out of piety, in the blood of the other half, and violate the fundamental feelings of humanity in order to sustain the cause of God: as though it were necessary to cease to be a man in order to prove oneself religious!
Denis DiderotAll things must be examined, debated, investigated without exception and without regard for anyone's feelings.
Denis DiderotMan was born to live with his fellow human beings. Separate him, isolate him, his character will go bad, a thousand ridiculous affects will invade his heart, extravagant thoughts will germinate in his brain, like thorns in an uncultivated land.
Denis DiderotIt has been said that love robs those who have it of their wit, and gives it to those who have none.
Denis DiderotYou live as if you were destined to live forever, no thought of your frailty ever enters your head, of how much time has already gone by you take no heed. You squander time as if you drew from a full and abundant supply, so all the while that day which you bestow on some person or thing is perhaps your last. You have all the fears of mortals and all the desires of immortals… What foolish forgetfulness of mortality to defer wise resolutions to the fiftieth or sixtieth year, and to intend to begin life at a point to which few have attained.
Denis DiderotThe bad gives rise to the good, the good inspires the better, the better produces the excellent, the excellent is followed by the bizarre
Denis DiderotA thing is not proved just because no one has ever questioned it. What has never been gone into impartially has never been properly gone into. Hence scepticism is the first step toward truth. It must be applied generally, because it is the touchstone.
Denis DiderotAnyone who takes it upon himself, on his private authority, to break a bad law, thereby authorizes everyone else to break the good ones.
Denis DiderotThe world is the house of the strong. I shall not know until the end what I have lost or won in this place, in this vast gambling den where I have spent more than sixty years, dice box in hand, shaking the dice.
Denis DiderotIf your little savage were left to himself and be allowed to retain all his ignorance, he would in time join the infant's reasoning to the grown man's passion, he would strangle his father and sleep with his mother.
Denis DiderotI picture the vast realm of the sciences as an immense landscape scattered with patches of dark and light. The goal towards which we must work is either to extend the boundaries of the patches of light, or to increase their number. One of these tasks falls to the creative genius; the other requires a sort of sagacity combined with perfectionism.
Denis DiderotThe enjoyment of freedom which could be exercised without any motivation would be the real hallmark of a maniac.
Denis DiderotThere's a bit of testicle at the bottom of our most sublime feelings and our purest tenderness.
Denis DiderotIt seems to me that if one had kept silence up to now regarding religion, people would still be submerged in the most grotesque and dangerous superstition ... regarding government, we would still be groaning under the bonds of feudal government ... regarding morals, we would still be having to learn what is virtue and what is vice. To forbid all these discussions, the only ones worthy of occupying a good mind, is to perpetuate the reign of ignorance and barbarism.
Denis DiderotThe man who first pronounced the barbarous word God ought to have been immediately destroyed.
Denis DiderotThis root [the potato], no matter how much you prepare it, is tasteless and floury. It cannot pass for an agreeable food, but it supplies a food sufficiently abundant and sufficiently healthy for men who ask only to sustain themselves. The potato is criticized with reason for being windy, but what matters windiness for the vigorous organisms of peasants and laborers?
Denis DiderotIn general, children, like men, and men, like children, prefer entertainment to education.
Denis DiderotIt is not the man who is beside himself, but he who is cool and collected,--who is master of his countenance, of his voice, of his actions, of his gestures, of every part of his play,--who can work upon others at his pleasure.
Denis DiderotI like better for one to say some foolish thing upon important matters than to be silent. That becomes the subject of discussion and dispute, and the truth is discovered.
Denis DiderotIf there are one hundred thousand damned souls for one saved soul, the devil has always the advantage without having given up his son to death.
Denis DiderotOne must be oneself very little of a philosopher not to feel that the finest privilege of our reason consists in not believing in anything by the impulsion of a blind and mechanical instinct, and that it is to dishonour reason to put it in bonds as the Chaldeans did. Man is born to think for himself.
Denis DiderotI discuss with myself questions of politics, love, taste, or philosophy. I let my mind rove wantonly, give it free rein to followany idea, wise or mad that may present itself. My ideas are my harlots.
Denis DiderotThe arbitrary rule of a just and enlightened prince is always bad. His virtues are the most dangerous and the surest form of seduction: they lull a people imperceptibly into the habit of loving, respecting, and serving his successor, whoever that successor may be, no matter how wicked or stupid.
Denis DiderotIf there were a reason for preferring the Christian religion to natural religion, it would be because the former offers us, on the nature of God and man, enlightenment that the latter lacks. Now, this is not at all the case; for Christianity, instead of clarifying, gives rise to an infinite multitude of obscurities and difficulties.
Denis DiderotWhether God exists or does not exist, He has come to rank among the most sublime and useless truths.
Denis DiderotI am wholly yours - you are everything to me; we will sustain each other in all the ills of life it may please fate to inflict upon us; you will soothe my troubles; I will comfort you in yours.
Denis DiderotAt an early age I sucked up the milk of Homer, Virgil, Horace, Terence, Anacreon, Plato and Euripides, diluted with that of Moses and the prophets.
Denis DiderotThe most dangerous madmen are those created by religion, and people whose aim is to disrupt society always know how to make good use of them on occasion.
Denis DiderotThere is no true sovereign except the nation; there can be no true legislator except the people.
Denis DiderotFirst move me, astonish me, break my heart, let me tremble, weep, stare, be enraged-only then regale my eyes.
Denis DiderotWhat is this world? A complex whole, subject to endless revolutions. All these revolutions show a continual tendency to destruction; a swift succession of beings who follow one another, press forward, and vanish; a fleeting symmetry; the order of a moment. I reproached you just now with estimating the perfection of things by your own capacity; and I might accuse you here of measuring its duration by the length of your own days.
Denis Diderot