People and stars are made of the same stuff.

Everyone you will ever meet knows something you don't.

We are just a speck, on a speck, orbiting a speck, in the corner of a speck, in the middle of nowhere.

To leave the world better than you found it, sometimes you have to pick up other people's trash.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.

You and I are made of stardust. We are the stuff of exploded stars. We are therefore, at least 1 way that the Universe knows itself. That, to me, is astonishing.

There's nothing I believe in more strongly than getting young people interested in science and engineering, for a better tomorrow, for all humankind.

I speak with dogs frequently. They don't really talk, but I feel they're communicating.

The natural world is a package deal; you don't get to select which facts you like and which you don't.

The more you find out about the world, the more opportunities there are to laugh at it.

Science is the best thing humans beings have ever come up with. And if it isn't, science will fix it.

Sometimes our inability to be Christlike happens because... we don't care. But sometimes it happens because we are naïve about our own hidden darkness.

Krishna says, fight. He says, go out in the battlefield and kill those people whom it's your job to kill.

The hammers must be swung in cadence, when more than one is hammering the iron.

Every time you work on a project, it's a little vacation from the project you're working on the other 23 hours. That's the thing - it replenishes you to do something else.

Preparation through education is less costly than learning through tragedy.

Accept the challenges of life and you'll continue to find that winning is the spirit of living . . . it's merely a state of mind.

The changes in your life aren't always what you hoped for. But they usually help you grow.

It sometimes happens and will sometimes happen again that I forget who I am and strut before my eyes, like a stranger.

You're always remembering songs you wanna sing except when you're actually at karaoke.

Run, Bella, run. I love you too much, for your good or mine.