What track needs to figure out: how to engage us between the races. Instead, the entire off-the-track conversation is about doping. This is how you kill a sport.

Those three things - autonomy, complexity, and a connection between effort and reward - are, most people will agree, the three qualities that work has to have if it is to be satisfying.

Success is deeply rooted in time and place. You may have the drive to read tons of books on biology. But if there are no books on biology in your library, and the library is never open, your drive is meaningless.

Trump is an innovator who has shown how out of step the political establishment was. Which I think, probably, in the long term will be healthy. We have to figure out how to reinvigorate our political institutions and he's demonstrating to us the urgency of that task.

Ideas and products and messages and behaviors spread just like viruses do.

Incompetence is certainty in the absence of expertise. Overconfidence is certainty in the presence of expertise.

I became convinced that knowing lots of people was kind of skill, something that the diligent can overcome.