Don't worry about anything. Go out and have a good time.

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!

God is forgiving or we would not still be walking this world. But to be moral is not to need his divine forgiveness, I think.

My rackets are run on strictly American lines and they're going to stay that way.

Man, surrounded by facts, permitting himself no surprise, no intuitive flash, no great hypothesis, no risk, is in a locked cell. Ignorance cannot seal the mind and imagination more securely.

I think if the people of this country can be reached with the truth, their judgment will be in favor of the many, as against the privileged few

Erosion, desertification, and pollution have become our lot. It is a weird form of suicide, for we are bleeding our planet to death.

If the Lord be with us, we have no cause of fear. His eye is upon us, His arm over us, His ear open to our prayer - His grace sufficient, His promise unchangeable.

I think we need to tell stories that reflect our world.

When I was hacking, it was more pushing the status quo and seeing how far you can go.

As for the fashion world, the one thing I respect is its shallowness: it's so deep - it's so serious. It can be hard to get that kind of shallowness because of its depth and seriousness.

Your job as a scientist is to figure out how you're fooling yourself.