1. The cold corner is gone, and the mulberry is not late.

It comes from Wang Bo's Preface to Tengwang Pavilion.

It means that the early years have passed away. If we can cherish the good times now, it's not too late to be angry.

2. The deceased is like a husband, never giving up day and night.

It's from The Analects of Confucius Zi Han.

It means: The river keeps running and time goes by.

3. The sun and the moon are gone, and the years are not with me.

It's from The Analects of Confucius Yang Huo.

It means: Time goes by, and time waits for no one. This sentence was said by Yang Huo, the retainer of Ji's family, when he persuaded Confucius to enter politics. To remind Confucius that age is in a hurry and time waits for no one, you can't be mediocre all your life.

4. If a young man doesn't work hard, the old man will be sad.

From Yuefu's Long Songs

It means that people should cherish the good times when they were young, study hard and keep making progress.

5. Teenagers are easy to get old but difficult to learn, and an inch of time is not light.

It is from Zhu Xi's Poem of Encouraging Learning.

It means that it is easy for teenagers to pass away and it is difficult to learn anything, so we must cherish the time and cherish every inch of it.