1. Don't say that there will be tomorrow if you don't study today. Don't say that there will be next year if you don't study this year. The sun and the moon are gone, and the year is not delayed.

2. ask the canal for clarity, because there is flowing water from the source.

3. Don't remember books, but remember them when you are familiar with them; Righteousness is not refined, but careful thinking can be refined. Only when the will is not established, there is no place to focus on it.

4. Partridges shed their Confucian crowns and feather clothes, and the mountains and green waters returned home with dignity. As a real dragon and tiger in the tripod, it is very important to care about human idleness. Give birth to wings, smoke is falling, and when you look back, you will only see a lot of graves. I didn't find a couple who played flute across the phoenix, and I flew alone with a lonely cloud and a crane.