“You can’t keep it up for ever, though. You’re going to burn out sooner or later. Everybody does. It’s the way people are made. In terms of evolutionary history, it was only yesterday that men learned to walk around on two legs and get in trouble thinking complicated thoughts. So don’t worry, you’ll burn out. Especially in the world that you’re trying to deal with: everybody burns out. There are too many tricky things going on in it, too many ways of getting into trouble. It’s a world made of tricky things.
