All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition.

If you have technological progress, that will encourage more capitalist system. On the other hand, if you don't, if things are stalled, you end up with much more of a zero sum type thing, where there's no progress and basically everybody's gain is somebody else's loss.

If you think your initial market might be too big, it almost certainly is.

The developing world can just do things that are extensive or horizontal, that basically copy. The developed world needs to do things that are intensive or vertical, where we take our civilization to the next level.

All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition.

We cannot take for granted that the future will be better, and that means we need to work to create it today.

Of the six people who started PayPal, four had built bombs in high school.