"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."

A picture book is like a theater where the audience can walk around on stage.

仁义、礼仪、智慧、诚信，这些都是仁的表现。

The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.