抽象是数学的关键。

I think people believe in heaven because they don’t like the idea of dying, because they want to carry on living and they don’t like the idea that other people will move into their house and put their things into the rubbish.

世界是一座墓地，而我们是它的幽灵。

The books we read in childhood are like a secret garden, a place where we can escape and dream.

骑着马迎风而行，看人生的起伏变化；高声歌唱书写风景，笑看天地的荒凉与衰老。