你必须先有爱，然后才能变得无情。

War is an ugly thing， but not the ugliest of things； the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse.

林业成功的真正标准是让土地比我们发现它时更健康。

The beauty of science lies in its ability to surprise us.

写文章必须追溯六经的本源，并参考《史记》《汉书》的写法。