计算复杂性的本质是理解什么可以被有效地计算的极限。
The greatest gift you can give someone is your time and attention.
The mind's work is never done, because adaptation is never complete.
Take a simple idea, and take it seriously.
The only way to endure life is to escape into art.
故事不在文字中；它在斗争中。
别让别人告诉你你成不了才，即使是我也不行。