Courage is the middle road between self-confidence and fear. -Aristotle
People who never show their faces can achieve great things. Tacitus
4. Don't promise others what you can't do. Once you have promised others, you must keep your promise. Washington
When you are angry, shut your mouth so as not to increase your anger. -Socrates
6. Those who are willing to sacrifice their freedom for peace do not deserve freedom and security. Franklin
7. Good temper is the best clothes a person can wear in social activities. -Dude
8. Whoever wants a dance academy will accomplish nothing, and whoever cannot dominate himself will always be a slave. -Goethe
9. Only by dedicating oneself to the society can one discover the meaning of a short and risky life. -Einstein
10, the value of life is not measured by time, but by depth. Leo Tolstoy
12, we should not waste our lives, we should be able to say, "I have done what I can." Madame Curie
13. To make others like you, you must first change your attitude towards people, relax, look natural and smile, so that others will feel like you. Carnegie
14, people who betray their companions often destroy themselves together unconsciously. -Aesop