Without a measureless and perpetual uncertainty, the drama of human life would be destroyed.

You are not stuck where you are unless you decide to be.

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

The nicest thing for me is sleep, then at least I can dream.

The desire to fly is an idea handed down to us by our ancestors who... looked enviously on the birds soaring freely through space... on the infinite highway of the air

I’m not afraid of death, but I’m in no hurry to die. I have so much I want to do first.

Nature is not human-hearted.

There are two tragedies in life. One is to lose your heart's desire. The other is to gain it.

Each life makes its own immitation of immortality.

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

I was born with an enormous need for affection, and a terrible need to give it.

Amnesty is as good for those who give it as for those who receive it. It has the admirable quality of bestowing mercy on both sides.

It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.

The historian looks backward. In the end he also believes backward.

We must be willing to fail and to appreciate the truth that often 'Life is not a problem to be solved, but a mystery to be lived.'

Life is pure adventure, and the sooner we realize that, the quicker we will be able to treat life as art.

The secret of life is honesty and fair dealing. If you can fake that, you've got it made.

We don't see things as they are, we see them as we are.

A tragedy means always a man's struggle with that which is stronger than man.

Symbols are the imaginative signposts of life.

Life is tough, but it's tougher when you're stupid.