There's plenty of room at the bottom.

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!

...finally her hands, so light, holding his head still and catching all his thoughts and imprisoning them there, in the space that no longer existed between them.

You can teach a child the importance of pain by your behavior. You can also teach as child the importance of no pain by your behavior.

Our skin is what stands between us and the world.

In a perfect world we would bring corporate tax rates down to 25% or less so we can get competitive in the world economy. Ultimately, I would love to see a flat tax.

I did not want to be taken for a fool-the typical French reason for performing the worst of deeds without remorse.

Jesus Christ said turn the other cheek. Unfortunately Luis Figo is not Jesus Christ.

Your best changes from moment to moment, sick or well, tired or rested. Remember that you are an imperfect human being. There is no value to judging yourself for

There is no such thing as a fixed policy, because policy like all organic entities is always in the making.

For me, a writer should be more like a lighthouse keeper, just out there by himself. He shouldn't get his ideas from other people all around him.

To wake for the first time in a new place can be like another birth.