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.

Apologize when you screw up and focus on other people, not on yourself.

Sometimes you can't pay it back, so you just have to pay it forward.

somehow, with the passage of time, and the dealines that life imposes, surrending became the right thing to do

Anybody out there who is a parent, if your kids want to paint their bedrooms,as a favor to me, let them do it. It'll be OK.

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

I'm dying, and I'm having fun.