Mathematics is the language in which the universe is written.

To write is to explore the boundaries of the self.

The price of freedom is eternal vigilance.

每件促使我们注意到他人的事，都能使我们更好地理解自己。

The world is full of people who have stopped listening to themselves or have listened only to their neighbors to learn what they ought to do, how they ought to behave, and what the values are that they should be living by.