The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.

The historian must be a poet and a philosopher.

音乐没有国界，它能连接所有人的心。

所有人都有三种生活：公开的、私人的和秘密的。

所有复杂行为都可以简化为更简单的刺激-反应单元。