量子引力问题不仅是物理学的问题，也是科学哲学的问题。

夜晚是一块伟大的画布，但星星是它的颜料。

Prediction is very difficult, especially about the future.

唯一无法被帮助的人是那些责备他人的人。

The psychologist must study the mind as it is, not as it ought to be.

And when you’re down in the hole， when that moment comes， it’s really okay to feel bad for a little while. Give yourself time to mourn what you think you may have lost but then here’s the key， learn from every mistake because every experience， encounter， and particularly your mistakes are there to teach you and force you into being more who you are. And then figure out what is the next right move.

"A good sentence is a small miracle."