He was always smoothing and polishing himself, and in the end he became blunt before he was sharp.

Out-of-date theories are not in principle unscientific because they have been discarded. That choice, however, makes it difficult to see scientific development as a process of accretion.

If a man knows what it is right to do, he does not require a formal reason. And a person that has been thus trained, either possesses these first principles already, or can easily acquire them.

They despised everything but virtue, caring little for their present state of life, and thinking lightly of the possession of gold and other property, which seemed only a burden to them; neither were they intoxicated by luxury; nor did wealth deprive them of their self-control; but they were sober, and saw clearly that all these goods are increased by virtue and friendship with one another, whereas by too great regard and respect for them, they are lost and friendship with them.

Our Constitution, by its separation of powers and its system of checks and balances, acts as a restraint upon efficiency by denying exclusive power to any branch of government. The logic of governmental efficiency, unchecked, runs straight on, not only to dictatorship, but also to torture, assassination, and other abominations.

Uncertainty, doubt, perpetual wrestling with the mystery of our final destiny, mental despair, and the lack of any solid and stable foundation, may be the basis of an ethic.

Lying and guile need only to be revealed and recognized to be undone. When once lying is recognized as such, it needs no second stroke; it falls of itself and vanishes in shame.

Ethical control may survive in small groups, but the control of the population as a whole must be delegated to specialists-to police, priests, owners, teachers, therapists, and so on, with their specialized reinforcers and their codified contingencies.

This Being out of God cannot, by any means, be a limited, completed, and inert Being, since God himself is not such a dead Being, but, on the contrary, is Life; - but it can only be a Power, since only a Power is the true formal picture or Schema of Life. And indeed it can only be the Power of realising that which is contained in itself - a Schema.

My prayer is not the whimpering of a beggar nor a confession of love. Nor is it the petty reckoning of a small tradesman: Give me and I shall give you. My prayer is the report of a soldier to his general: This is what I did today, this is how I fought to save the entire battle in my own sector, these are the obstacles I encountered, this is how I plan to fight tomorrow.

If we take a survey of ages and of countries, we shall find the women, almost - without exception - at all times and in all places, adored and oppressed. Man, who has never neglected an opportunity of exerting his power, in paying homage to their beauty, has always availed himself of their weakness He has been at once their tyrant and their slave.

I am using the word "perceive". I am using it here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all. And this is a perfectly correct and familiar usage of the word. If there is thought to be a difficulty here, it is perhaps because there is also a correct and familiar usage of the word "perceive", in which to say of an object that it is perceived does carry the implication that it exists.

The severe Schools shall never laugh me out of the Philosophy of Hermes, that this visible world is but a picture of the invisible.

Friends share all things.

It is as natural and as right for a young man to be imprudent and exaggerated, to live in swoops and circles, and beat about his cage like any other wild thing newly captured, as it is for old men to turn gray, or mothers to love their offspring, or heroes to die for something worthier than their lives.

Much has been said of Mahomet's propagating his Religion by the sword. It is no doubt far nobler what we have to boast of the Christian Religion, that it propagated itself peaceably in the way of preaching and conviction. Yet withal, if we take this for an argument of the truth or falsehood of a religion, there is a radical mistake in it. The sword indeed: but where will you get your sword! Every new opinion, at its starting, is precisely in a minority of one. In one man's head alone, there it dwells as yet. One man alone of the whole world believes it; there is one man against all men. That he take a sword, and try to propagate with that, will do little for him. You must first get your sword! On the whole, a thing will propagate itself as it can. We do not find, of the Christian Religion either, that it always disdained the sword, when once it had got one.

As I watched the seagulls, I thought: "That's the road to take; find the absolute rhythm and follow it with absolute trust."

Saying is one thing and doing is another.

The Leninist agrarian reform has created a new and powerful layer of popular enemies of socialism on the countryside, enemies whose resistance will be much more dangerous and stubborn than that of the noble large landowners.

Respectable scientists like de Broglie himself accept wave mechanics because it confers coherence and unity upon the experimental findings of contemporary science, and in spite of the astonishing changes it implies in connection with ideas of causality, time, and space, but it is because of these changes that it wins favor with the public. The great popular success of Einstein was the same thing. The public drinks in and swallows eagerly everything that tends to dispossess the intelligence in favor of some technique; it can hardly wait to abdicate from intelligence and reason and from everything that makes man responsible for his destiny.

No collection of facts is ever complete, because the Universe is without bounds. And no synthesis or interpretation is ever final, because there are always fresh facts to be found after the first collection has been provisionally arranged.

Terms which imply theoretical views are admissible, as far as the theory is proved.

People talk sometimes of a bestial cruelty, but that's a great injustice and insult to the beasts; a beast can never be so cruel as a man, so artistically cruel. The tiger only tears and gnaws, that's all he can do. He would never think of nailing people by the ears, even if he were able to do it.

Pain and suffering are always inevitable for a large intelligence and a deep heart. The really great men must, I think, have great sadness on Earth.

When you tell a girl how beautiful she is, she will say, "Now isn't that just like a man! All you men think about is bodies. OK, so I'm beautiful, but I got my body from my parents and it was just luck. I prefer to be admired for myself, not my chassis." Poor little chauffeur! All she is saying is that she has lost touch with her own astonishing wisdom and ingenuity, and wants to be admired for some trivial tricks that she can perform with her conscious attention. And we are all in the same situation, having dissociated ourselves from our bodies and from the whole network of forces in which bodies can come to birth and live.

Only the feeble resign themselves to final death and substitute some other desire for the longing for personal immortality. In the strong the zeal for perpetuity overrides the doubt of realizing it, and their superabundance of life overflows upon the other side of death.

Everyone who has left houses or brothers or sisters or father or mother or children or fields for my sake will receive a hundred times as much and will inherit eternal life.

How you produce volume after volume the way you do is more than I can conceive. ...But you haven't to forge every sentence in the teeth of irreducible and stubborn facts as I do. It is like walking through the densest brush wood.

We produce these representations in and from ourselves with the same necessity with which the spider spins. If we are forced to comprehend all things only under these forms, then it ceases to be amazing that in all things we actually comprehend nothing but these forms. For they must all bear within themselves the laws of number, and it is precisely number which is most astonishing in things. All that conformity to law, which impresses us so much in the movement of the stars and in chemical processes, coincides at bottom with those properties which we bring to things. Thus it is we who impress ourselves in this way

Judge not, that you be not judged. For with what judgment you judge, you will be judged; and with the measure you use, it will be measured back to you. And why do you look at the speck in your brother's eye, but do not consider the plank in your own eye? Or how can you say to your brother, 'Let me remove the speck from your eye'; and look, a plank is in your own eye? Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother's eye. 

I maintain that in every special natural doctrine only so much science proper is to be met with as mathematics; for... science proper, especially of nature, requires a pure portion, lying at the foundation of the empirical, and based upon à priori knowledge of natural things. ...the conception should be constructed. But the cognition of the reason through construction of conceptions is mathematical. A pure philosophy of nature in general, namely, one that only investigates what constitutes a nature in general, may thus be possible without mathematics; but a pure doctrine of nature respecting determinate natural things (corporeal doctrine and mental doctrine), is only possible by means of mathematics; and as in every natural doctrine only so much science proper is to be met with therein as there is cognition à priori, a doctrine of nature can only contain so much science proper as there is in it of applied mathematics.

There is no more consensus on what justice means than there is on the character of the good. If anything, there is less. Among the virtues, justice is one of the most shaped by convention. For that reason it is among the most changeable.

Existential envy which is directed against the other person's very nature, is the strongest source of ressentiment. It is as if it whispers continually: "I can forgive everything, but not that you are- that you are what you are-that I am not what you are-indeed that I am not you." This form of envy strips the opponent of his very existence, for this existence as such is felt to be a "pressure," a "reproach," and an unbearable humiliation. In the lives of great men there are always critical periods of instability, in which they alternately envy and try to love those whose merits they cannot but esteem. Only gradually, one of these attitudes will predominate. Here lies the meaning of Goethe's reflection that "against another's great merits, there is no remedy but love."

A free man must be able to endure it when his fellow men act and live otherwise than he considers proper. He must free himself from the habit, just as soon as something does not please him, of calling for the police.

Soon fades the spell, soon comes the night: Say will it not be then the same, Whether we played the black or white,Whether we lost or won the game?

We cannot understand what happens in the universe. What is glorious in it is united with what is full of horror. What is full of meaning is united to what is senseless. The spirit of the universe is at once creative and destructive - it creates while it destroys and destroys while it creates, and therefore it remains to us a riddle. And we must inevitably resign ourselves to this.

In an information-rich world, the wealth of information means a dearth of something else: a scarcity of whatever it is that information consumes. What information consumes is rather obvious: it consumes the attention of its recipients. Hence a wealth of information creates a poverty of attention and a need to allocate that attention efficiently among the overabundance of information sources that might consume it.

The superior man thinks of virtue; the small man thinks of comfort. The superior man thinks of the sanctions of law; the small man thinks of favors which he may receive.

I have read descriptions of Paradise that would make any sensible person stop wanting to go there.

Women are the most charitable creatures, and the most troublesome. He who shuns women passes up the trouble, but also the benefits. He who puts up with them gains the benefits, but also the trouble. As the saying goes, there's no honey without bees.

In order to make myself recognized by the Other, I must risk my own life. To risk one's life, in fact, is to reveal oneself as not-bound to the objective form or to any determined existence - as not-bound to life.

The poor, short lone fact dies at birth. Memory catches it up into her heaven and bathes it in immortal waters.

Every word is an adamantine shell which encloses a great explosive force. To discover its meaning you must let it burst inside you like a bomb and in this way liberate the soul which it imprisons.

In framing scientific terms, the appropriation of old words is preferable to the invention of new ones.

Did ye never read in the scriptures, The stone which the builders rejected, the same is become the head of the corner: this is the Lord's doing, and it is marvellous in our eyes? Therefore say I unto you, The kingdom of God shall be taken from you, and given to a nation bringing forth the fruits thereof. And whosoever shall fall on this stone shall be broken: but on whomsoever it shall fall, it will grind him to powder.

Every thought derives from a thwarted sensation.

Friendship is always helpful, but love sometimes even does harm