Experience is what you get when you didn't get what you wanted.

If I could only give three words of advice, they would be, 'Tell the truth.' If I got three more words, I'd add: 'All the time.'

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.

I also think my dad would be reminding me that kids — more than anything else — need to know their parents love them. Their parents don't have to be alive for that to happen.

Just because you're in the driver's seat, doesn't mean you have to run people over.

Brick walls are there for a reason. They give us a chance to show how badly we want

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