①The prime years will never come again, and the morning will never come again. Be encouraged in time, time waits for no one.
②The good deeds are small but not done; the evil deeds are small but done.
3. It is easier for a young person to learn than to become an old man, so no time is wasted. ——Zhu Xi
4. My life has a limit, but my knowledge has no limit. ——Zhuangzi
5. If young people don’t work hard, old people will be miserable.
——"Long Song Xing"