Don't do it with little evil, and don't do it with little good.

Learning without thinking is useless, thinking without learning is dangerous.

If you carve but give up halfway, even a rotten piece of wood will not break; If you keep carving, even metal and stone can be carved.

Diligence is good at diligence, poverty is good at playing, success is good at thinking, and destruction is good at following.

Knives will rust if they are not sharpened, and people will fall behind if they don't study.

Good medicine tastes bitter and is good for illness, but advice when most unpleasant is good for action.