The more you know who you are, and what you want, the less you let things upset you.

If you go back a few hundred years, what we take for granted today would seem like magic—being able to talk to people over long distances, to transmit images, flying, accessing vast amounts of data like an oracle. These are all things that would have been considered magic a few hundred years ago.

I don’t think you should ever feel like you’ve achieved everything.

In economics, the devil is often in the details.