Purposive behavior in animals and men.

Man is the artisan of his own happiness.

生存下来的不是最强壮的物种，也不是最聪明的，而是最能适应变化的。

语言是我们理解世界的唯一工具，但它总是不够用。

The most necessary, the most important, the principal, the most essential thing for a musician is this: to know what he wants, what he can do, and what he ought to do.

每座城市都有自己隐秘的节奏，倾听者能听见它的故事。