People should have a modest heart and great tolerance.

2. Good medicine tastes bitter and is good for illness, but advice when most unpleasant is good for action-Confucius' remarks in the Six Books of the Warring States Period.

Good medicine tastes bitter and is good for illness, but advice when most unpleasant is good for people's behavior.

3. Indulgence and diligence are wasted in play, and actions are destroyed in thinking. -Tang Hanyu's Understanding of Learning

Study is specialized because of diligence, but abandoned because of play; Virtue is gained by independent thinking and corrupted by conformity.

4, the blade is sharpened, and the plum blossoms are bitter and cold. -from the ancient book "Warning Sages and Diligences"

The sword front is sharpened, and the plum blossom fragrance comes from the cold winter.

If young people don't work hard, old people will be sad. -Long song in the Three Kingdoms period.

If you don't work hard when you are young, it's no use being sad when you are old.