1. Tiáo: children aged 3 or 4 to 8 or 9 years old.

2. Hair tied: refers to 15 years old.

2. Weak crown: refers to 20 years old.

3. Erli: refers to 30 years old.

4. Not confused: refers to 40 years old.

5. Zhiming (half hundred): refers to 50 years old.

6. Sixty years old (ears are smooth): refers to 60 years old.

7. Ancient age: refers to 70 years old.

8. Old age: refers to 80-90 years old.

9. Qi Yi: a hundred years old.

The often referred to as "the year of standing up", "the year of not being confused" and "the year of knowing one's destiny" come from the records of "The Analects of Confucius: Weizheng Chapter": "Confucius said: There are five goals in ten. When it comes to learning, one should stand firm at thirty, not be confused at forty, know the destiny at fifty, be attuned to one's ears at sixty, and follow the heart's desires at seventy without going beyond the rules. "Ten years of life are called young, twenty are weak, thirty are strong, forty are strong, fifty are moxa, sixty are old, seventy are old, eighty and ninety are old, and a hundred years "Yue Qi." There is also a saying that old people are guilty and will not be punished. However, later generations often use "young school", "weak crown", etc. as age titles.