数学中最深刻的思想往往来自最简单的问题。

The individual has become a mere cog in an enormous organization of things and powers which tear from his hands all progress, spirituality, and value in order to transform them from their subjective form into the form of a purely objective life.

我不认为你需要悲伤才能写出一首悲伤的歌。

海洋是我们最伟大的资源，但也是我们最大的责任。我们如何对待它，决定了我们的遗产。

解释：要紧紧抓住时机不能错过，错过了也不能延误太久。

【译文】君子不会根据言论推举选拔人才，也不会因为某人有缺点错误而废弃他的言论。