Understanding the limits of computation is as important as understanding its possibilities.
世界是如此不可预测。事情突然发生,出乎意料。我们想要感觉到我们能够控制自己的存在。在某些方面我们是,在某些方面我们不是。我们被偶然和巧合的力量所支配。
"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."