The proof of a theory is in its reasoning, not in its sponsorship.

The irony of world history turns everything upside down. We, the "revolutionaries," the "rebels"-we are thriving far better on legal methods than on illegal methods and revolt. The parties of order, as they call themselves, are perishing under the legal conditions created by themselves. They cry despairingly with Odilon Barrot: la légalité notes tue, legality is the death of us; whereas we, under this legality, get firm muscles and rosy cheeks and look like eternal life.

Any madness in us gains from being expressed, because in this way one gives a human form to what separates us from humanity.

Piecemeal social engineering resembles physical engineering in regarding the ends as beyond the province of technology. (All that technology may say about ends is whether they are compatible with each other or realizable.)

Visions are a feeble resource, you will say, against great adversity! Oh Sir, these visions may possibly have more reality than all those apparent goods about which men make so much ado, for they never bring a true feeling of happiness to the soul, and those who possess them are equally forced to project themselves into the future for want of finding enjoyments that satisfy them, in the present.

He dies twice who perishes by his own hand.

Love is a severe critic. Hate can pardon more than love.

Unto Thee, O Lord, the Soul of Creation cried: "For whom didst Thou create me, and who so fashioned me? Feuds and fury, violence and the insolence of might have oppressed me; None have I to protect me save Thee; Command for me then the blessings of a settled, peaceful life."

It is not by prayer and humility that you cause things to go as you wish, but by acquiring a knowledge of natural laws.

First of all, no one knows his place in society, his class position or social status; nor does he know his fortune in the distribution of natural assets and abilities, his intelligence and strength, and the like. Nor, again, does anyone know his conception of the good, the particulars of his rational plan of life, or even the special features of psychology such as his aversion to risk or liability to optimism or pessimism. More than this, I assume that the parties do not know the particular circumstances of their own society. That is, they do not know its particular economic or political situation, or the level of civilization and culture it has been able to achieve. The persons in the original position have no information as to which generation they belong.

Today, local economies are being destroyed by the "pluralistic," displaced, global economy, which has no respect for what works in a locality. The global economy is built on the principle that one place can be exploited, even destroyed, for the sake of another place.

As for the Soothsayer, although I am certain no one feels the true beauties of that work better than I, I am far from finding these beauties in the same places as the infatuated public does. They are not the products of study and knowledge, but rather are inspired by taste and sensitivity.

Is Christ only to be adored? Or is the holy Mother of God rather not to be honoured? This is the woman who crushed the Serpent's head. Hear us. For your Son denies you nothing.

But it has been necessary, for the benefit of the social order, to convert religion into a kind of police system, and hence hell. Oriental or Greek Christianity is predominantly eschatological, Protestantism predominantly ethical, and Catholicism is a compromise between the two, although with the eschatological element predominating.

...man first of all exists, encounters himself, surges up in the world - and defines himself afterwards.

Raphael paints wisdom, Handel sings it, Phidias carves it, Shakespeare writes it, Wren builds it, Columbus sails it, Luther preaches it, Washington arms it, Watt mechanizes it.

Another may be more expert in casting [throwing] his opponent; but he is not more social, nor more modest, nor better disciplined to meet all that happens, nor more considerate with respect to the faults of his neighbors.

If we want eternal life, then we'll need to rewrite our bug-ridden genetic code and become god-like. "May all that have life be delivered from suffering", said Gautama Buddha. It's a wonderful sentiment. Sadly, only hi-tech solutions can ever eradicate suffering from the living world. Compassion alone is not enough.

Our model citizen is a sophisticate who before puberty understands how to produce a baby, but who at the age of thirty will not know how to produce a potato.

There stood Mucius, despising the enemy and despising the fire, and watched his hand as it dripped blood over the fire on his enemy's altar, until Porsenna, envying the fame of the hero whose punishment he was advocating, ordered the fire to be removed against the will of the victim.

The most violent revolutions in an individual's beliefs leave most of his old order standing. Time and space, cause and effect, nature and history, and one's own biography remain untouched. New truth is always a go-between, a smoother-over of transitions. It marries old opinion to new fact so as ever to show a minimum of jolt, a maximum of continuity.

It is the natural effect of improvement, however, to diminish gradually the real price of almost all manufactures.

When it is a question of money, everybody is of the same religion.

A grievous crime indeed against religion has been committed by the man who imagines that Islam is defended by the denial of the mathematical sciences.

Can there be a more horrible object in existence than an eloquent man not speaking the truth?

Blessed are those who have no talent!

Bourgeois civilization has built railroads and electric power plants, has invented explosives and airplanes, in order to create wealth. Imperialism has placed the tools of peace in the service of destruction. With modern means it would be easy to wipe out humanity at one blow.

I don't feel that it is necessary to know exactly what I am. The main interest in life and work is to become someone else that you were not in the beginning. If you knew when you began a book what you would say at the end, do you think that you would have the courage to write it? What is true for writing and for a love relationship is true also for life. The game is worthwhile insofar as we don't know what will be the end. My field is the history of thought. Man is a thinking being.

All men cannot receive this saying, save they to whom it is given. For there are some eunuchs, which were so born from their mother's womb: and there are some eunuchs, which were made eunuchs of men: and there be eunuchs, which have made themselves eunuchs for the kingdom of heaven's sake. He that is able to receive it, let him receive it.

We have the right to conclude from this that syndicalist violence, perpetrated in the course of strikes by proletarians who desire the overthrow of the State, must not be confused with the acts of savagery which the superstition of the State suggested to the revolutionaries of 1793, when they had power in their hands and were able to oppress the conquered - following the principles which they had received from the Church and from the monarchy.

Whenever we engage in consumption or production patterns which take more than we need, we are engaging in violence.

People often become scholars for the same reason they become soldiers: simply because they are unfit for any other station. Their right hand has to earn them a livelihood; one might say they lie down like bears in winter and seek sustenance from their paws.

The world is but a perpetual see-saw.

But if you say: "How am I to know what he means, when I see nothing but the signs he gives?" then I say: "How is he to know what he means, when he has nothing but the signs either?"

Life is not, and death is a dream. Suffering has invented them both as self-justification. Man alone is torn between an unreality and an illusion.

I don't want to sound callous. I mean, even if I have nothing to offer, that doesn't matter, because that still doesn't mean that what anybody else has to offer therefore has to be true.

It is more shameful to distrust our friends than to be deceived by them.

Man is a creature who lives not upon bread alone, but principally by catchwords; and the little rift between the sexes is astonishingly widened by simply teaching one set of catchwords to the girls and another to the boys.

I am NOT nothing! A vaporous phosphorescence on a damp meadow, a miserable worm that crawls and loves, that shouts and talks about wings for an hour or two until his mouth is blocked with earth. The dark powers give no other answer. But within me a deathless Cry, superior to me, continues to shout. For whether I want to or not, I am also, without doubt, a part of the visible and the invisible Universe. We are one.

Many city-dwellers have a romanticized conception of the living world. From another perspective, some "conservation biologists" favour e.g. "Pleistocene rewilding". By contrast, I think any truly compassionate person should be horrified at the terrible suffering of Nature "red in tooth and claw". Why not aim for a cruelty-free world instead?

We are told that a utilitarian will be apt to make his own particular case an exception to moral rules, and, when under temptation, will see a utility in the breach of a rule, greater than he will see in its observance. But is utility the only creed which is able to furnish us with excuses for evil doing, and means of cheating our own conscience? They are afforded in abundance by all doctrines which recognise as a fact in morals the existence of conflicting considerations; which all doctrines do, that have been believed by sane persons. It is not the fault of any creed, but of the complicated nature of human affairs, that rules of conduct cannot be so framed as to require no exceptions, and that hardly any kind of action can safely be laid down as either always obligatory or always condemnable.

In the same way as philosophy loses sight of its true object and appropriate matter, when either it passes into and merges in theology, or meddles with external politics, so also does it mar its proper form when it attempts to mimic the rigorous method of mathematics.

Bourgeois political economy ... never gets to see man who is its real subject. It disregards the essence of man and his history and is thus in the profoundest sense not a 'science of people' but of non-people and of an inhuman world of objects and commodities.

What is the essence of life? To serve others and to do good. Often given as a saying of Aristotle with no reference.

A small beginning has led us to a great ending. If I were to put the bit of chalk with which we started into the hot but obscure flame of burning hydrogen, it would presently shine like the sun. It seems to me that this physical metamorphosis is no false image of what has been the result of our subjecting it to a jet of fervent, though nowise brilliant, thought to-night. It has become luminous, and its clear rays, penetrating the abyss of the remote past, have brought within our ken some stages of the evolution of the earth. And in the shifting "without haste, but without rest" of the land and sea, as in the endless variation of the forms assumed by living beings, we have observed nothing but the natural product of the forces originally possessed by the substance of the universe.

Two things in America are astonishing: the changeableness of most human behavior and the strange stability of certain principles. Men are constantly on the move, but the spirit of humanity seems almost unmoved.

An atheist is just somebody who feels about Yahweh the way any decent Christian feels about Thor or Baal or the golden calf. As has been said before, we are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further.