God is dead. God remains dead. And we have killed him. Yet his shadow still looms. How shall we comfort ourselves, the murderers of all murderers? What was holiest and mightiest of all that the world has yet owned has bled to death under our knives; who will wipe this blood off us? What water is there for us to clean ourselves?

Live your life as though your every act were to become a universal law.

What goes up must come down.

There is no kind of dishonesty into which otherwise good people more easily and frequently fall than that of defrauding the government.

To educate a man in mind and not in morals is to educate a menace to society.

Death does not concern us, because as long as we exist, death is not here. And when it does come, we no longer exist.

Whatever the universal nature assigns to any man at any time is for the good of that man at that time.

Man is a universe within himself.

We should all be obliged to appear before a board every five years and justify our existence… on pain of liquidation.

The thing that alarms me is that there are so many clergymen who say that the so-called ‚new morality‘ is all right. They say we’re living in a new generation; let’s be relevant, let’s change God’s law. Let’s say that adultery is all right under certain circumstances; fornication’s all right under certain circumstances. If it’s ‚meaningful.‘

Man wants to live, but it is useless to hope that this desire will dictate all his actions.

Do not take life too seriously. You will never get out of it alive.

Without feelings of respect, what is there to distinguish men from beasts?

I draw from the Absurd three consequences: my revolt, my liberty, my passion.

Where the Mind is biggest, the Heart, the Senses, Magnanimity, Charity, Tolerance, Kindliness, and the rest of them scarcely have room to breathe.

If co-operation is a duty, I hold that non-co-operation also under certain conditions is equally a duty.

If anyone offers conjectures about the truth of things from the mere possibility of hypotheses, I do not see by what stipulation anything certain can be determined in any science, since one or another set of hypotheses may always be devised which will appear to supply new difficulties.

The deed is everything, the glory is naught.

Belief consists in accepting the affirmations of the soul; unbelief, in denying them.

In a way, the whole tangible universe itself is a vast residue, a skeleton of countless lives that have germinated in it and have left it, leaving behind them only a trifling, infinitesimal part of their riches.

The gospel to me is simply irresistible.

Art, like morality, consists in drawing the line somewhere.

The foot feels the foot when it feels the ground.

The formula ‚Two and two make five‘ is not without its attractions.

Atheism is a non-prophet organization.

My religion encompasses all religions. I believe in God, I believe in the universe. I believe you are god, I believe I am god; I believe the earth is god and the universe is god. We’re all god.

It’s always interesting about God because it’s like all of the religions in the world say that they pray to the same God, and yet they ask that same one God to divide itself up and agree with this one and fight against that one.

Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.

But I always think that the best way to know God is to love many things.

Justice is the set and constant purpose which gives every man his due.

One may no more live in the world without picking up the moral prejudices of the world than one will be able to go to hell without perspiring.

I cannot believe in a God who wants to be praised all the time.

The Christian’s Bible is a drug store. Its contents remain the same, but the medical practice changes.

Virtue cannot separate itself from reality without becoming a principle of evil.

The end of man is action, and not thought, though it be of the noblest.

Man is unable to see himself entirely unrelated to mankind, neither is he able to see mankind unrelated to life, nor life unrelated to the universe.

He that will believe only what he can fully comprehend must have a long head or a very short creed.

Every church is a stone on the grave of a god-man: it does not want him to rise up again under any circumstances.

The great question of our time is, ‚Will we be motivated by materialistic philosophy or by spiritual power?‘

History should be written as philosophy.

Every man has the right to risk his own life in order to preserve it. Has it ever been said that a man who throws himself out the window to escape from a fire is guilty of suicide?

Those who can make you believe absurdities can make you commit atrocities.

The higher a man stands, the more the word vulgar becomes unintelligible to him.

The strength of a man’s virtue should not be measured by his special exertions, but by his habitual acts.

It is a strange desire, to seek power, and to lose liberty; or to seek power over others, and to lose power over a man’s self.

People often speak of God being even-handed. God is not even-handed. God is biased, in favor of the weak, of the despised.

Man lives freely only by his readiness to die, if need be, at the hands of his brother, never by killing him.

Virtue consists, not in abstaining from vice, but in not desiring it.

It’s possible – you can never know – that the universe exists only for me. If so, it’s sure going well for me, I must admit.

There never was and is not likely soon to be a nation of philosophers, nor am I certain it is desirable that there should be.

For one swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy.

Spiritual worldliness kills! It kills the soul! It kills the Church!

Mathematics takes us into the region of absolute necessity, to which not only the actual word, but every possible word, must conform.

I believed what my father taught me about the separation of church and state, so when I was President I never invited Billy Graham to have services in the White House because I didn’t think that was appropriate. He was injured a little bit, until I explained it to him.

Life and death are one thread, the same line viewed from different sides.

Facts do not cease to exist because they are ignored.

The first book I ever really read was Plato’s ‚Republic,‘ and then I had to go over that five times or something.

Religion is just mind control.

I grow daily to honour facts more and more, and theory less and less. A fact, it seems to me, is a great thing; a sentence printed, if not by God, then at least by the Devil.

If life is a checker game, someone else is moving the pieces. It isn’t us. Don’t be surprised by amazing coincidences. There are no accidents. Consider, as I learned to do, the incredible interconnectedness of all of life.

Information is not knowledge.