The laws of physics are the language in which the universe writes its story.

The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.

诗人是那些感受强烈且表达优美的人。

不能通过正式手段从非正式到正式。

一个力学问题只有被简化为代数问题时才算解决。