I do tend to think that things that have incredibly long time horizons often do involve market failures.

For Hamlet, greatness means willingness to fight for reasons as thin as an eggshell: anyone would fight for things that matter; true heroes take their personal honor so seriously they will fight for things that don’t matter.

If people were super-optimistic about technology there would be no reason to be pessimistic about the future.

Twitter is hard to evaluate. They have a lot of potential. It's a horribly mismanaged company — probably a lot of pot-smoking going on there. But it's such a solid franchise it may even work with all that.

Great tech opportunities happen only once.

It is sort of a bit of a caricature of capitalism, that it's always this zero-sum game where you have winners and losers. Silicon Valley, the technology industry at its best, creates a situation where everybody can be a winner.

There are many more secrets in the world that are waiting to be found. The question of how many secrets exist in our world is roughly equivalent to how many startups people should start.