I must study politics and war that my sons may have liberty to study mathematics and philosophy.

Humans should pursue wisdom.

我不认为自己是古典艺术家或流行艺术家。我只认为自己是一个艺术家。

Your brain is like a muscle; the more you use it, the stronger it gets.

文化是一个群体在解决外部适应和内部整合问题的过程中逐渐习得的东西。