他在主张杠杆原理时所说。

我们时代的挑战是建立一个为所有人服务的经济，而不仅仅是少数特权阶层。

La poesía es la única prueba concreta de la existencia del hombre.

I constantly see people rise in life who are not the smartest, sometimes not even the most diligent, but they are learning machines. They go to bed every night a little wiser than they were when they got up.

I'm not going to change who I am because of what people say.

我在这里是为了长期建设一些东西。其他任何事情都是分心。