"Time is always a surprise. It moves in ways we can't predict."

The power of a man, to take it universally, is his present means, to obtain some future apparent good.

The less men think, the more they talk.

写作是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.