A mathematician's reputation rests on the number of bad proofs he has given.

Sadly, it seems that I have the proclivity to create plenty of devils, but most of the time I don’t even go looking for angels.

As long as you leave to others the responsibility to make you happy, you will always be miserable, because that is actually your job

Forgive me. I continue to underestimate the breadth of your ignorance.

When someone is fearless, when pain isn't a factor, it's impossible to break his spirit.

I was born in London and lived there until I was five. We traveled a lot. But really San Diego is my hometown. It's where I went to high school.

Anything that gets your blood racing is probably worth doing.

Whether Pacquiao loses in the first round, whether he knocks out Mayweather in the first round, it's still going to be the biggest fight in history.

I've always been a guy that doesn't do well waiting for people to say, "You can act." It's always been a part of me.

One's days were too brief to take the burden of another's errors on one's shoulders. Each man lived his own life and paid his own price for living it.

What you discover about life’s shell game is that it’s hardest to follow the pea when you’re the pea.