The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all.
所有老人共同的大秘密是,在七八十年里,你真的没有改变。你的身体变了,但你一点都没变。
时间是唯一没有野心的批评家。
The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.