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。

You pray for rain, you gotta deal with the mud too. That's a part of it.

电影不是关于道德，而是关于真相。

The study of L-functions is not just about proving theorems but about understanding patterns.

每一棵种植的树都是治愈地球的一步，但真正的改变需要系统性行动。