Distinguish the poems in the book that are not well-formed, cut them out, learn the traditional elegance of the Book of Songs, and learn that the wise move forward, and the more teachers there are, this is your real teacher.
I can't recognize the true face of Lushan Mountain because I am there.
Silkworms in spring will weave until they die, and candles will drain the wick every night.
If you have good knowledge, you can get it in a proper way, but if you accumulate it in a proper way, you can get it in a proper way.
If you don't climb the mountain, you don't know the height of the sky; Don't face the deep stream, I don't know the thickness of the ground.