"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
对付不自由世界的唯一方法就是变得如此绝对自由,以至于你的存在本身就是一种反叛。
The greatest threat to democracy is not from external enemies but from internal decay and the loss of civic virtue.
释义:人生如同一盘棋,在纷繁复杂的世事中,胜负尚未决定,双方都在角力。
天下人都说这是他们努力的结果,不会说“这是我见到了命”。 
数学的目标是使简单的复杂化,使复杂的简单化。