Ten-year-old boys move differently than middle-aged women, who move differently than athletic guys, who move differently than government bureaucrats.

I think if you have a really big, heavy person, there's a feeling of an invisible puppeteer jerking them around in space. They don't feel like they are moving themselves.

If you look at a lot of animated movies, they don't pay attention to how things move through space.

If you move something 10 pounds through space and then stop suddenly, there's a little overshoot. When you transfer weight from one leg to another, there's a certain way that it happens.

When you become successful, it is not just money that makes you happy.

I no longer care about the financial system. I gave them my roadmap. OK? Thanks, bye. I've no idea what's going on. I'm disconnected. I'm totally disengaged.

The first money I ever earned was for drawing stone tools.

I think, always, with a new book, I get nervous. I think mostly it is because work is really important to me, and a book doing well is important because it buys you another one. Not because of the money but if you keep doing interesting work, work that people like, they will want you to do more, and offers that are interesting come in.