If you ask an economist what’s driven economic growth, it’s been major advances in things that mattered – the mechanization of farming, mass manufacturing, things like that. The problem is, our society is not organized around doing that.

你越了解自己，对你在别人身上看到的东西就越有耐心。

Don’t let your dreams be dreams.

You are not the opinion of somebody who doesn't know you.

The journey of solving a mathematical problem is as important as the solution itself, for it teaches us patience, persistence, and the joy of discovery.

邪恶胜利的唯一必要条件是好人不作为。