这句话借用俗语，表达了命运无常、机遇变化的道理。

文明的分布并非偶然，而是遵循与气候条件密切相关的明确规律。

In the realm of quantum mechanics, the observer becomes a part of the experiment, altering the outcome by the mere act of observation.

In investing, you get what you don’t pay for.

预防性医疗的悖论：越需要的人越不重视。