2, ask questions and you will have money, but it will be small for your own use. -"Shang Patent"
3, black hair does not know how to study hard early, Bai Shoufang regrets studying late. -"Encourage learning"
4. The learning of a gentleman must be good at asking questions, learning from them and learning from each other. Non-learning, no doubt; Don't ask, don't learn. -Liu Kai
5, sensitive and eager to learn, not ashamed to ask questions. -"The Analects of Confucius Gongye Chang"
6. Be strong in your own hands and don't brag to others. -"Warning General Description"
7, a hard day, you can have a good sleep; If you work hard all your life, you can sleep happily. -Leonardo da Vinci
8, diligent, do not waste time; Do something useful at any time and give up all unnecessary actions. -1 Franklin, American politician and scientist
9. The three conditions of learning are: more observation, more hardship and more research. Garfield