If your parents are billionaires, that might actually be an obstacle to your own happiness and self-development. If you go to Oxford or Harvard, that might actually thwart your desire to graduate with a science or math degree.

The difference between a crime of evil and a crime of illness is the difference between a sin and a symptom.

So, it's a very, you know - maybe we're wrong in - you know, we go around thinking the innovator is the person who's first to kind of conceive of something. And maybe the innovation process continues down the line to the second and the third and the fourth entrant into a field.

We have, as human beings, a storytelling problem. We're a bit too quick to come up with explanations for things we don't really have an explanation for.

The Law of the Few... says that one critical factor in epidemics is the nature of the messenger.

We learn by example and by direct experience because there are real limits to the adequacy of verbal instruction.

There's no idea that can't be explained to a thoughtful 14-year-old. If the thoughtful 14-year-old doesn't get it, it is your fault, not the 14-year-old's.