解释:了解古代不了解现在,称为愚昧无知,那么儒生就只能称作愚昧无知的人了。
如果自己道德高尚,就不会被外界不正的东西所迷惑。
The past is never dead. It's not even past.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
翻译:蒙昧无知的人要用正道来培养,这是圣人的功业。