1. Black-haired people don’t know how to study diligently early, and white-haired people regret studying late.

2. Learn eruditely, interrogate it, think carefully, argue clearly, and practice it diligently.

3. Achievements are achieved through hard work and wasteful play; success is achieved through thinking and destroyed by casualness.

4. Read thousands of volumes, and write like a master.

5. Work hard to know all the words in the world, and resolve to read all the books in the world.