我们这一代的挑战是调和进步与正义。

数学推理可以相当系统地看作是两种能力的结合运用，我们可以称之为直觉和独创性。

The greatest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.

To be a Negro in America is to be in a constant state of rage.

The existence of the natural world is the same kind of fact as the existence of any proposition.

人生中唯一真正的失败是不忠于自己所知道的最好的东西。