2, the blade is sharpened, and the plum blossoms are bitter and cold.
3, the knife will rust if it is not sharpened, and people will fall behind if they don't learn.
4. There are roads in Shushan, and there is no limit to learning the sea.
5. A good memory is not as good as a bad writing.
6. Lush seedlings need water; Growing teenagers need to learn.
7. Learning is not enough.
8. Pay attention to everything and learn.
9. Knowing is knowing, not knowing is not knowing, just knowing.
10, black hair doesn't know how to study hard early, and bald head regrets studying late.
1 1, ten years of trees, a hundred years of people.
12, Mo Daojun left early, and there were more early pedestrians.
13, those who know little are eager to learn, and are ashamed of the questioner's complacency.