Nature does not care what we call it, she just keeps on doing it.

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!

Nature time and patience are the three great physicians.

I like to write when I feel spiteful; it's like having a good sneeze.

Tonight was a disappointing effort. I thought we competed the last three quarters but in the first quarter we did not compete, we participated, and that's not acceptable.

The essence of good and evil is a certain disposition of the will.

I write scripts to serve as skeletons awaiting the flesh and sinew of images.

I put everything I can into the mulberry of my mind and hope that it is going to ferment and make a decent wine. How that process happens, I'm sorry to tell you I can't describe.

The truth is obtained like gold, not by letting it grow bigger, but by washing off from it everything that isn't gold

All the mistakes I ever made were when I wanted to say 'No' and said 'Yes'.

But, all this while, I was giving myself very unnecessary alarm. Providence had mediated better things for me than I could possibly imagine for myself.

Comrade life, let us march faster, March faster through what's left of the five-year plan.