计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们首先是问题。

我不需要镜子来知道自己的价值。

The most important thing in a story is not what happens, but why it happens.

Civilization is a stream with banks. The stream is sometimes filled with blood from people killing, stealing, shouting and doing the things historians usually record, while on the banks, unnoticed, people build homes, make love, raise children, sing songs, write poetry and even whittle statues. The story of civilization is the story of what happened on the banks.

Every setback is a setup for a comeback.