数学家的工作永无止境；总有新的问题要问，新的谜题要解。

短期债务可能是危险的，因为它创造了突然挤兑的可能性。

People should live according to the rhythm of nature.

Education begins the gentleman, but reading, good company and reflection must finish him.

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

勇敢一点，冒险一试，没有什么能替代经验。

戏剧是未言之物的艺术。