Working really hard is what successful people do.

I worry that track is going to enter into an impossibly complicated stage, where our understanding of the complexities of human physiology - and our ability to accentuate and exploit them - is going to make the notion of pure competition impossible.

I want to convince you that these kinds of personal explanations of success don't work. People don't rise from nothing....It is only by asking where they are from that we can unravel the logic behind who succeeds and who doesn't.

There’s this powerful phrase in the legal world, “Difficult cases make bad law.” The exception is the difficult case. You can’t generalize them by definition. So although they are fascinating, they don’t solve any problem because they’re so one of a kind.

When we become expert in something, our tastes grow more esoteric and complex.

You don't manage a social wrong. You should be ending it.

The Rule of 150 says that congregants of a rapidly expanding church, or the members of a social club, or anyone in a group activity banking on the epidemic spread of shared ideals needs to be particularly cognizant of the perils of the bigness. Crossing the 150 line is a small change that can make a big difference.