When I was growing up, I always knew I'd be in the top of my class in math, and that gave me a lot of self-confidence.

We wouldn't survive if people didn't trust us.

Too many rules will stifle innovation.

Once you go from 10 people to 100, you already don’t know who everyone is. So at that stage you might as well keep growing, to get the advantages of scale.

You always hear the phrase, money doesn't buy you happiness. But I always in the back of my mind figured a lot of money will buy you a little bit of happiness. But it's not really true. I got a new car because the old one's lease expired.

It's important not to overstate the benefits of ideas. Quite frankly, I know it's kind of a romantic notion that you're just going to have this one brilliant idea and then everything is going to be great. But the fact is that coming up with an idea is the least important part of creating something great. It has to be the right idea and have good taste, but the execution and delivery are what's key.

You can make money without doing evil.