Does it really matter to you whether your code is going to take 300 years or 900 years to run?

或者900年区别大么？,这个数字的规模才是问题关键所在？

麻省理工公开课 - 计算机科学及编程导论课程节选

I think there is the essence of personal challenge in dealing with that.

我想关于这个问题,个人面对的挑战是关键。

普林斯顿公开课 - 人性课程节选

The crucial point in thinking about this is to realize that every time you combine a different egg with a different sperm ? you end up with a different person, right?

考虑这个问题的关键一点是,明白每一次,你把一个不同的卵细胞和一个不同的精子结合,都会产生一个不同的人，对吗？

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