1. He who can control himself is the most powerful person. -Seneca

2. Strictly exercise self-restraint, because restraint itself can be used as a spiritual sustenance. -Tagore

3. Self-esteem, self-knowledge and self-control are the only three that can lead you to the most noble kingdom. -Tennyson

4. Grow out of the mud without being stained-Song Dunyi's "Love Lotus"

Translation: Grow out of the mud without being contaminated. Sludge: sludge at the bottom of the water; Dye: stain. It is a metaphor for coming out of a vulgar environment, but being able to maintain pure quality without being infected with bad habits.

5. A person's greatest victory is to conquer himself. -Andreev

6. Introspection is a mirror, which can clearly show our mistakes and give us a chance to correct them. -Heine