It's easy to be smart when you are parodying smart people.

Anything is possible, and that’s something we should not lose sight of. The inspiration and the permission to dream is huge.

I understand the arguments about how the billions of dollars spent to put men on the moon could have been used to fight poverty and hunger on Earth. But, look, I'm a scientist who sees inspiration as the ultimate tool for doing good. When you use money to fight poverty, it can be of great value, but too often, you're working at the margins. When you're putting people on the moon, you're inspiring all of us to achieve the maximum of human potential, which is how our greatest problems will eventually be solved. Give yourself permission to dream.

We have a finite amount of time. Whether short or long, it doesn't matter. Life is to be lived.

There's a limit to how many times you can read how great you are and what an inspiration you are, but I'm not there yet.

You can always change you plan, but only if you have one.

I was trying to put myself in a bottle that would one day wash up on the beach for my children. If I were a painter, I would have painted for them. If I were a musician, I would have composed music. But I am a lecturer. So I lectured.