Never, ever underestimate the importance of having fun.

Anybody can get chewed out. It's the rare person who says, oh my god, you were right. As opposed to, no wait, the reason is... We've all heard that

It's a thrill to fulfill your own childhood dreams, but as you get older, you may find that enabling the dreams of others is even more fun.

Time must be explicitly managed, like money.

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.

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

Remember brick walls let us show our dedication. They are there to separate us from the people who don't really want to achieve their childhood dreams.