It's not about how much you have, but how much you enjoy what you have.

The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history. Then have somebody write new books, manufacture a new culture, invent a new history. Before long the nation will begin to forget what it is and what it was. The world around it will forget even faster.

I am a whore, and I am paid very well for building high-rise buildings.

If you're not failing every now and again, it's a sign you're not doing anything very innovative.

Persistence is key in mathematical research; many great results come from long struggles.

Reading is to the mind what exercise is to the body.

人的本性是不断生长的生理，每天都在生成变化。