We must invest in people as much as we invest in machinery.

The function of education is to help us go beyond what is given, to transcend the immediate.

A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.

The highest form of theory is the ability to simplify complex things into simple and clear principles.

I’m sure the universe is full of intelligent life. It’s just been too intelligent to come here.

世界上已经有太多谎言，不幸的是，它们一半都是真的。