The young people think the old people are fools - but the old people know the young people are fools.

Most people are other people. Their thoughts are someone else's opinions, their lives a mimicry, their passions a quotation.

Even truth needs to be clad in new garments if it is to appeal to a new age.

If man limits himself to a satisfied animal existence, and asks from life only what such an existence can give, the higher values of life at once disappear.

Life is either a daring adventure or nothing. Security is mostly a superstition. It does not exist in nature.

If you have been sunned through and through like an apricot on a wall from your earliest days, you are oversensitive to any withdrawal of heat.

Life shrinks or expands in proportion to one's courage.

How wonderful it is that nobody need wait a single moment before starting to improve the world.

We all owe death a life.

He who has a why to live can bear with almost any how.

Those who want to live, let them fight, and those who do not want to fight in this world of eternal struggle do not deserve to live.

Every person who ever thought he had a right to assert, and went boldly and asserted it, himself, or jointly with others that shared his convictions, was a direct actionist.

Your belief in God is merely an escape from your monotonous, stupid and cruel life.

In the end, it's not the years in your life that count. It's the life in your years.

Consistency is contrary to nature, contrary to life. The only completely consistent people are the dead.

In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.

To forgive is not just to be altruistic.

The way to know life is to love many things.

Rudeness is the weak man's imitation of strength.

Nothing in life is more remarkable than the unnecessary anxiety which we endure, and generally create ourselves.

The more I see, the less I know for sure.