物理学中的每一个发现都打开了一个新的问题领域，提醒我们追求知识是一个无尽的旅程。

True friends are not those who have endless topics to talk about, but those who can stay together without feeling awkward even if they don't speak.

农业成功的真正标准不仅是产量，还有生产它的生态系统的健康。