It requires indeed some courage to undertake a labor of such far-reaching extent.

The weight of the past is heavier than the future.

Women select men. That makes them nature, because nature is what selects. And you can say "Well it's only symbolic that women are nature", it's like no, it's not just symbolic. The woman is the gatekeeper to reproductive success. And you can't get more like nature than that, in fact it's the very definition of nature.

除非你能将数据转化为可操作的见解，否则数据毫无意义。

读书人要为自己的一生爱惜名誉，不应为这一生出卖名誉。治理诗书，崇尚气节，谨慎取予，严肃仪表，这就是爱惜名誉。相互竞争标榜，攀附权贵，出尽风头，不分是非，这就是出卖名誉。爱惜名誉的人清静无为，出卖名誉的人急躁而拙劣。所以读书人要管理钱财正当用途，而不是浪费金钱。救济乡亲，聘请老师教学，赈济荒年歉收，协助善行，这些是运用钱财。而花钱布置庭园，唱歌跳舞，大宴宾客，积聚宝物等，这些都是浪费金钱。善用金钱的人虽花钱但收获丰盈，伤财的人积聚多但终将倾覆。