A man's face as a rule says more, and more interesting things, than his mouth, for it is a compendium of everything his mouth will ever say, in that it is the monogram of all this man's thoughts and aspirations.

One should attend to one's enemies, for they are the first persons to detect one's errors.

But Don Quixote was converted. Yes - and died, poor soul. But the other, the real Don Quixote, he who remained on earth and lives among us with his spirit - this Don Quixote was not converted, this Don Quixote continues to incite us to make ourselves ridiculous, this Don Quixote must never die.

Nothing is so fatal to Religion as indifference which is, at least, half Infidelity.

Every sentence I utter must be understood not as an affirmation, but as a question.

Be not hasty to speak; nor slow to hear!

At this point in history when all things which concern man and the structure and elements of history itself are suddenly revealed to us in a new light, it behooves us in our scientific thinking to become masters of the situation, for it is not inconceivable that sooner than we suspect, as has often been the case before in history, this vision may disappear, the opportunity may be lost, and the world will once again present a static, uniform, and inflexible countenance.

And now I have explained the series of social and intellectual conditions by which the discovery of sociological laws, and consequently the foundation of Positivism, was fixed for the precise date at which I began my philosophical career: that is to say, one generation after the progressive dictatorship of the Convention, and almost immediately after the fall of the retrograde tyranny of Bonaparte.

One lives but once in the world.

Knowledge is the conformity of the object and the intellect.

Jehovah, Allah, the Trinity, Jesus, Buddha, are names for a great variety of human virtues, human mystical experiences, human remorses, human compensatory fantasies, human terrors, human cruelties. If all men were alike, all the world would worship the same God.

The idea that the citizen owes loyalty to a country, a territory, a jurisdiction and all those who reside within it - the root assumption of democratic politics, and one that depends upon the nation as its moral foundation - that idea has no place in the minds and hearts of many who now call themselves citizens of European states.

The measure of action is the sentiment from which it proceeds. The greatest action may easily be one of the most private circumstance.

When we cannot be delivered from ourselves, we delight in devouring ourselves.

Ye fools, did not he that made that which is without make that which is within also?

What is peddled about nowadays as philosophy, especially that of N.S. [National Socialism], but has nothing to do with the inner truth and greatness of that movement [namely the encounter between global technology and modern humanity] is nothing but fishing in that troubled sea of values and totalities.

This [experimentation] is the custom-and properly so-in those sciences where mathematical demonstrations are applied to natural phenomena, as is seen in the case of perspective, astronomy, mechanics, music, and others where the principles, once established by well-chosen experiments, become the foundations of the entire superstructure.

"'Are the gods not just?' 'Oh no, child. What would become of us if they were?'"

Now precisely because Galilean science is, in the formation of its concepts, the technic of a specific Lebenswelt, it does not and cannot transcend this Lebenswelt. It remains essentially within the basic experiential framework and within the universe of ends set by this reality.

What I can't understand is why you can't see the extraordinary beauty of the idea that life started from nothing - that is such a staggering, elegant, beautiful thing, why would you want to clutter it up with something so messy as a God?

Scientists believe there is a hierarchy of facts and that among them may be made a judicious choice. They are right, since otherwise there would be no science... One need only open the eyes to see that the conquests of industry which have enriched so many practical men would never have seen the light, if these practical men alone had existed and if they had not been preceded by unselfish devotees who died poor, who never thought of utility, and yet had a guide far other than caprice.As Mach says, these devotees have spared their successors the trouble of thinking.

Attempt nothing above thy strength!

Eros and depression are opposites.

As money grows, care follows it and the hunger for more.

Every pleasure raises the tide of life; every pain lowers the tide of life.

Multitude is a class concept. ... Class is determined by class struggle. There are, of course, in infinite number of ways that humans can be grouped into classes - hair color, blood type, and so forth - but the classes that matter are those defined by the lines of collective struggle. Race is just as much a political concept as economic class is in this regard. ... Class is a political concept, in short, in that a class is and can only be a collectivity that struggles in common.

The media themselves are the avant-garde of our society. Avant-garde no longer exists in painting, music and poetry, it's the media themselves.

At the end of Being and Nothingness, ... Being in-itself and Being for-itself were of Being; and this totality of beings, in which they were effected, itself was linked up to itself, relating and appearing to itself, by means of the essential project of human-reality. What was named in this way, in an allegedly neutral and undetermined way, was nothing other than the metaphysical unity of man and God, the relation of man to God, the project of becoming God as the project constituting human-reality. Atheism changes nothing in this fundamental structure.

My idea of heaven is, eating pâté de foie gras to the sound of trumpets.

We are all of us in error, the humorists excepted. They alone have discerned, as though in jest, the inanity of all that is serious and even of all that is frivolous.

Zeno: The many do not know that except by this devious passage through all things the mind cannot attain to the truth. Zeno: Most people are not aware that this roundabout progress through all things is the only way in which the mind can attain truth and wisdom.

They [theologians] will explain to you how Christ was formed in the Virgin's womb; how accident subsists in synaxis without domicile in place. The most ordinary of them can do this. Those more fully initiated explain further whether there is an instans in Divine generation; whether in Christ there is more than a single filiation; whether 'the Father hates the Son' is a possible proposition; whether God can become the substance of a woman, of an ass, of a pumpkin, or of the devil, and whether, if so, a pumpkin could preach a sermon, or work miracles, or be crucified. And they can discover a thousand other things to you besides these. They will make you understand notions, and instants, formalities, and quiddities, things which no eyes ever saw, unless they were eyes which could see in the dark what had no existence.

You may have made a Revolution, but not a Reformation. You may have subverted Monarchy, but not recover'd freedom.

In action, in desire, we must submit perpetually to the tyranny of outside forces; but in thought, in aspiration, we are free, free from our fellowmen, free from the petty planet on which our bodies impotently crawl, free even, while we live, from the tyranny of death.

The divergent scales of values scream in discordance, they dazzle and daze us, and in order that it might not be painful we steer clear of all other values, as though from insanity, as though from illusion, and we confidently judge the whole world according to our own home values. Which is why we take for the greater, more painful and less bearable disaster not that which is in fact greater, more painful and less bearable, but that which lies closest to us. Everything which is further away, which does not threaten this very day to invade our threshold - with all its groans, its stifled cries, its destroyed lives, even if it involves millions of victims - this we consider on the whole to be perfectly bearable and of tolerable proportions.

Rules necessary for axioms. Not to demand in axioms any but things perfectly evident.

They have their belief, these poor Thibet people, that Providence sends down always an Incarnation of Himself into every generation. At bottom some belief in a kind of Pope! At bottom still better, belief that there is a Greatest Man; that he is discoverable; that, once discovered, we ought to treat him with an obedience which knows no bounds! This is the truth of Grand Lamaism; the "discoverability" is the only error here.

No wild beasts are such enemies to mankind as are most of the Christians in their deadly hatred of one another.

Life is complex in its expression, involving more than percipience, namely desire, emotion, will, and feeling. ... identification of rhythm as the causal counterpart of life; wherever there is some life, only perceptible to us when the analogies are sufficiently close ... The rhythm is then the life, in the sense in which it can be said to be included within nature.

In this book we turn to the study of new patterns of energy arising from man's physical and psychic artifacts and social organizations. The only method for perceiving process and pattern is by inventory of effects obtained by the comparison and contrast of developing situations.

The most human thing about us is our technology.

He who abhors and shuns the light of the Sun, He who refuses to behold with respect the living creation of God, He who leads the good to wickedness, He who makes the meadows waterless and the pastures desolate, He who lets fly his weapon against the innocent, An enemy of my faith, a destroyer of Thy principles is he, O Lord!

Action is the pointer which shows the balance. We must not touch the pointer but the weight.

Were I a nightingale, I would act the part of a nightingale; were I a swan, the part of a swan.

It is the man of science, eager to have his every opinion regenerated, his every idea rationalized, by drinking at the fountain of fact, and devoting all the energies of his life to the cult of truth, not as he understands it, but as he does not yet understand it, that ought properly to be called a philosopher. To an earlier age knowledge was power - merely that and nothing more; to us it is life and the summum bonum. Emancipation from the bonds of self, of one's own prepossessions, importunately sought at the hands of that rational power before which all must ultimately bow, - this is the characteristic that distinguishes all the great figures of nineteenth-century science from those of former periods.

We can pool information about experiences, but never the experiences themselves. From family to nation, every human group is a society of island universes.