Fairy tales are more than true: not because they tell us that dragons exist, but because they tell us that dragons can be beaten.

There is no easy walk to freedom anywhere, and many of us will have to pass through the valley of the shadow of death again and again before we reach the mountaintop of our desires.

The advantage of a ridiculously ambitious goal is that it sets the bar very high so even in failure it may be a success measured by the ordinary.

一个好的算法就像一个好故事：它有清晰的开头、中间和结尾。

男性和女性在繁殖策略上有所不同，因为他们在整个进化历史中面临着不同的适应性问题。