Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.

继子女面临更大风险，因为进化压力塑造了父母更偏爱自己基因后代的心理。

我们之所以能够感知事物的变化，是因为单子在无限的变化中保持了稳定的内在本质。

我是一个坚强的人，但我也有很多情感。

翻译：两个人心意相同，就像锋利的刀剑可以斩断金属；心意相同的话语，犹如兰花一样芳香。