1. The biggest enemy in life is yourself. Only by defeating yourself can you be invincible. ——Xiu Yuan

2. Where and when did you start self-education? There is an old adage that says: "Victory over yourself is the most difficult victory." ——Suhomlinsky

3. In the rough life, we must have the feeling of transcending ourselves. ——Benavente

4. The greatest enemy in life is yourself. These words are the most important. A person will always encounter some enemies in his life, such as hooligans, scoundrels, villains, and other beasts in disguise. ——Buddhist wise words

5. Defeating yourself is the most tragic failure, defeating yourself is the most valuable victory. ——Anonymous

6. He who conquers others is powerful, and he who conquers himself is strong. ——"Tao Te Ching"

7. Pessimistic people are defeated by themselves first, and then defeated by life; optimistic people defeat themselves first, and then defeat life. ——Wang Guozhen

8. Being dissatisfied with oneself is the fundamental characteristic of any truly talented person. ——[Russian] Chekhov

9. The so-called living people are those who are constantly challenging and those who are constantly climbing the dangerous peaks of destiny. ——Hugo

10. The first condition for victory is to defeat yourself. ——Silampa

11. One person can defeat thousands of armies on the battlefield, but only by defeating oneself can one be the greatest winner. —— Nehru

12. On the battlefield, one person sometimes defeats a thousand people, but only the person who defeats himself is the greatest winner. —— Nehru

13. It is a great thing to succeed in something that others despise, because it proves that you have not only defeated yourself, but also defeated others. ——Montland