Tragic art, as it developed in the theaters of ancient Greece, in the fifth century B.C., was essentially an art form devoted to tracing how people fail, and also according them a level of sympathy, which ordinary life would not necessarily accord them. A few years ago, I was thinking about this, and I went to "The Sunday Sport," a tabloid newspaper I don't recommend you start reading if you're not familiar with it already.

数学的美只向更有耐心的追随者展示。

必须有宽容雅量方可有高尚的品德；必须有忍耐之心性，事情才能成功。

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。