The first colony on Mars is not going to be built by a private company. How are you going to make money? You're not.

No one is dumb who is curious. The people who don't ask questions remain clueless throughout their lives.

We went to the moon and discovered Earth.

The good thing about science is that it's true whether or not you believe in it.

What I’m saying is, when different experiments give you the same result, it is no longer subject to your opinion. That’s the good thing about science: It’s true whether or not you believe in it. That’s why it works.

Some of the greatest poetry is revealing to the reader the beauty in something that was so simple you had taken it for granted.

I have yet to see a successful prediction about the physical world that was inferred or extrapolated from the content of any religions document.