It is not how old you are, but how you are old.

If you've been playing poker for half an hour and you still don't know who the patsy is, you're the patsy.

We all learn lessons in life. Some stick, some don't. I have always learned more from rejection and failure than from acceptance and success.

The present is theirs; the future, for which I really worked, is mine.

Death is not the opposite of life, but a part of it.

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.

The purpose of art is washing the dust of daily life off our souls.

A hospital bed is a parked taxi with the meter running.

All my life I have tried to pluck a thistle and plant a flower wherever the flower would grow in thought and mind.

If a man neglects education, he walks lame to the end of his life

Time is the best killer.

Man is born free and everywhere he is in chains.

Don't go around saying the world owes you a living. The world owes you nothing. It was here first.

This terrifying world is not devoid of charms, of the mornings that make waking up worthwhile.

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.

The love of life is necessary to the vigorous prosecution of any undertaking.

Doing nothing is happiness for children and misery for old men.

We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths.

Life has its own hidden forces which you can only discover by living.

Crude classifications and false generalizations are the curse of organized life.

All my life through, the new sights of nature made me rejoice like a child.