Don't think about what you want to be, but what you want to do. Keep up some kind of a minimum with other things so that society doesn't stop you from doing anything at all.

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!

When you thank GOD for what you have, it means you appreciate and value what's in your hands. And when you value what's in your hands, it will open up its wonder to you.

We make our own destiny, not because we can see the road ahead, but because we cannot see the road ahead. It is the road, the motion, the forward movement, that takes us to ourselves.

To the ordinary, opposite, means hatred. Every person sees themselves as love. To the extraordinary, opposite means opportunity.

I hope the Vandals had thorns in their sandals

There are a lot of ethical firms on Wall Street.

I pictured myself as a virus or a cancer cell and tried to sense what it would be like.

I'll keep making videos as long as they're fun and can get better!

The prime role of a leader is to offer an example of courage and sacrifice.

Many people go into the wilderness to experience it, and if they experience it in comfort, there's very little in a literary sense for them to write about.

It's easy for someone to joke about scars if they've never been cut.