Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

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!

Don't let any situation intimidate you anymore, don't accept defeat anymore.

Earth is sad, Moon is shy, Sun is happy but wait a moment, I just forgot to tell you that I am the child of open sky.

Where are your clothes? And do not pretend you do not know. I can accept that you may not know if you killed a man, but every girl always knows where her clothes are.

The test and the use of man's education is that he finds pleasure in the exercise of his mind.

My change may inspire other people.

Some people think that if they will do certain things, they will somehow earn the favor of God, but this misses the whole point of Christianity and ironically devolves into a me-centered approach.

Unhappiness is bondage; therefore, happiness is freedom. The way to find happiness is through the cure. Therefore, it is only through the cure that one finds freedom.

I fought against the bottle, but I had to do it drunk. Took my diamond to the pawn shop, but that don't make it junk.

Complaints are vain; we will try to. do better another time. To-morrow and to-morrow. A few designs and a few failures, and the time of designing is past.

Golf is fluid. It's always changing. It's always evolving. First of all, you never master it.