Complaining does not work as a strategy.

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.

We cannot change the cards we are dealt, just how we play the hand.

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.

Most people who have told a lie think they got away with it … when in fact, they didn’t

Never, ever underestimate the importance of having fun.

Never underestimate the importance of having fun. I'm dying and I'm having fun. And I'm going to keep having fun every day because there's no other way to play it.