You're only given a little spark of madness. You mustn't lose it.

I must not write a word to you about politics, because you are a woman.

I could see that, if not actually disgruntled, he was far from being gruntled.

Courage is not simply one of the virtues, but the form of every virtue at the testing point.

When one door is closed, don't you know that many more are open

The idea is to write it so that people hear it and it slides through the brain and goes straight to the heart.

What is to give light must endure burning.

Blessed are the cracked, for they shall let in the light.

Any product that needs a manual to work is broken.

What's with you men? Would hair stop growing on your chest if you asked directions somewhere?

An idea is salvation by imagination

There is no real ending. It's just the place where you stop the story.

People think I'm a miserable sod but it's only because I get asked such bloody miserable questions.

Get off your butt and join the Marines!

We often discover what will do by finding out what will not do; and probably he who never made a mistake never made a discovery.

Trying to define yourself is like trying to bite your own teeth.

I have often been accused of putting my foot in my mouth, but I will never put my hand in your pockets

Let us try to teach generosity and altruism, because we are born selfish.

There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered.

Be less curious about people and more curious about ideas.

Every time you are tempted to react in the same old way, ask if you want to be a prisoner of the past or a pioneer of the future.