Science is not just about facts, but about understanding the underlying principles that govern those facts.

I love people who make me laugh. I honestly think it's the thing I like most, to laugh. It cures a multitude of ills. It's probably the most important thing in a person.

I write to understand as much as to be understood.

The only way to succeed is to be completely honest with yourself and others.

到处都有痛苦。

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