A good apology is like antibiotic, a bad apology is like rubbing salt in the wound.

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

No matter how bad things are, you can always make things worse. At the same time, it is often within your power to make them better

When we're connected to others, we become better people.

Never make a decision until you have to.

When you're screwing up and nobody says anything to you anymore, that means they've given up on you.

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.