两条路在树林中分岔，我选着走人少的那一条，这就导致了所有的不同。

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

关上门。写作时不要让别人看着你的肩膀。不要试图弄清楚别人想从你这里听到什么；弄清楚你要说什么。这是你唯一能提供的东西。

翻译：言行谨慎，既能避免灾祸，也不会招来荣誉。