"Grief is not a line, carrying you infinitely further from loss. It is a circle, and you come back, again and again, to the same place."

知识不会使我们更丰富；它使我们越来越远离神秘世界——这个我们曾经的天然家园。

The world is a mirror, reflecting back what we bring to it.

Quality means doing it right when no one is looking.

I went to the woods because I wished to live deliberately. I wanted to live deep and suck out all the marrow of life, to put to rout all that was not life.

预测未来的最好方式就是创造未来。

In mathematics, you don't understand things. You just get used to them.