Know your place in the world and evaluate yourself fairly, not in terms of the naïve ideals of your own youth, nor in terms of what you erroneously imagine your teacher's ideals are.

If you think you understand quantum mechanics, you don't understand quantum mechanics.

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.

If you can't explain something to a first year student, then you haven't really understood .

God was invented to explain mystery. God is always invented to explain those things that you do not understand.

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.

My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous reason and you'd just spoil it to know it.

Religion is a culture of faith; science is a culture of doubt.

The only way to deep happiness is to do something you love to the best of your ability

Einstein was a giant. His head was in the clouds, but his feet were on the ground. But those of us who are not that tall have to choose!

A fashion is nothing but an induced epidemic.

...And eventually, he (Charles Manson) testified to an empty court, as Bugliosi had convinced the presiding judge Older, that Manson's hypnotic powers might convince the jury he was innocent.

I came up with an idea to turn the cliché inside out: instead of humans threatened by zombies, what if a sympathetic zombie was threatened by humans?

All I wanted was to connect my moods with those of Paris. Beauty pains and when it pained most, I shot.

When declaring your rights, don't forget your responsibilities.

We have thought that because children are young they are silly. We have forgotten the blind stirrings, the reaching outward of our own youth.

Civil disobedience presupposes willing obedience of our self-imposed rules, and without it civil disobedience would be a cruel joke.

Deference and intimacy live far apart.

What is to be done about these literary people, who will never understand that painting is a craft and that the material side comes first? The ideas come afterwards, when the picture is finished.

An ounce of practice is better than tons of theory.