Joke Collection Website - Mood Talk - What are the sentences describing "manage yourself" in classical Chinese?

What are the sentences describing "manage yourself" in classical Chinese?

1, the law should be self-disciplined.

2. Self-denial.

3. Be strict with yourself and be lenient with others.

4. Don't do to others what you don't want them to do to you.

5. Sit still, think about yourself and talk about people.