我喜欢练习。当我不在比赛时，我就在练习。

人类大脑是进化的产物，人类心智也是如此。

此一时，彼一时也，怎么能一概而论呢？

The best way to ensure peace is to maintain a balance of power among the great powers.

I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant, and with five I can make him wiggle his trunk.'