2. It is difficult for a teenager to learn, but an inch of time is not light.
3. An inch of time and an inch of gold can't buy time.
4, young people don't work hard, the boss is sad, 5, don't wait, young people are white, empty and sad! 6, full of losses, modest benefits. 7, sensitive and eager to learn, not ashamed to ask questions. 8, when the book is used, it is not difficult to know if you hate it less. 9. Learning without thinking is useless, and thinking without learning is dangerous.
10, never tire of learning, never tire of teaching.
1 1, you don't know much until you learn.
13, learning is endless. 14. It is a good idea to study hard when it is precious. 15, wealth must come from hard work, men must read five books.