Neil deGrasse Tyson

I'm not saying there's no God. I'm saying if there is a God, he's an absentee landlord.

No offense to anyone, but if you're an adult and you're still believing in Santa Claus, I'm concerned for you.

We are part of this universe; we are in this universe, but perhaps more important than both of those facts is that the universe is in us.

If you're religious, and you have some sort of revelation that makes you think something is true, that's not science. That's belief.

Earth is a small planet, and we are not alone. We are not alone in the universe, and we are not alone on this planet.

I don't have a problem with people believing in anything they want to believe in. I have a problem with people telling me what I should believe in.

There are no bad ideas in science, just bad experiments.

I would say, if you're not failing, you're not trying hard enough.

For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You'd be surprised how far you can get with those two.

Science is a way of thinking much more than it is a body of knowledge.

We are stardust. We are golden. We are billion-year-old carbon. And we've got to get ourselves back to the garden.

The universe is not a hostile place, it's just indifferent.

Knowing how to think empowers you far beyond those who only know what to think.

If you're religious, you already have a book of answers. The problem is, it's not a book of questions.

I'm a big believer in the fact that if you're not making mistakes, you're not trying hard enough.

The universe is a place of wonder and mystery, and it's all ours to explore.

We spend the first year of a child's life teaching it to walk and talk and the rest of its life telling it to sit down and shut up. Is it any wonder the world is in the mess it's in?

Science is not just a collection of facts, but a way of thinking.

The greatest discoveries are not made in the laboratory, but in the mind.

I'm not saying that science has all the answers. I'm saying that science is the only way we're going to get answers.