People who wish to analyze nature without using mathematics must settle for a reduced understanding.

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!

The pursuit of truth in science transcends national boundaries. It takes us beyond hatred and anger and fear. It is the best of us.

Wisdom never comes to those who believe they have nothing left to learn.

I liked being married instead of the girl who's looking for a guy.

Always make water when you can.

The modern listening experience is one of solitude, where someone just listens to music on their laptop.

I was trying to do too many things at the same time, which is my nature. But I was enjoying it, and I still do enjoy it.

Don't be concerned with how many followers you have, be concerned with where you are leading them.

The term clinical depression finds its way into too many conversations these days. One has a sense that a catastrophe has occurred in the psychic landscape.

On network TV, I'm still Phoebe to people, and it would be hard to convince them otherwise in the bright lights of a sitcom.

If you don't like the weather in New England now, just wait a few minutes.