The famous aphorism in "Mencius" serves as a motto and explains the reasons, as follows:

1. If you know that it is wrong, you have already done it. ——"Mencius·Teng Wen Gong"

Reason: It satirizes people who know they are wrong but are not determined to correct them, and warns people that they should correct their mistakes in time and cannot find excuses to delay. Taking this as a motto, you can always warn yourself that you should correct your mistakes in time, otherwise there will be endless troubles.

2. Be kind to relatives and be kind to the people, be kind to the people and love things. ——"Mencius: Devotion to the Heart"

Reason: A gentleman can be friendly to his relatives, be kind to the people, be kind to the people, and therefore be able to cherish all things. Using this as a motto, you can control yourself in time when you waste food or have a bad mood, and warn yourself to be kind to others and cherish food and materials.

3. If you are poor, you can help yourself; if you are rich, you can help the world. ——"Mencius: Devotion to the Heart"

Reason: When scholars are in poverty, they will cultivate their own moral character. When they are successful, they will be able to care for the world. Taking this as a motto can sound a warning to yourself when you are rich in the future. Wealth will not always be there, but you still need to be kind at all times.

4. An adult is one who does not lose his innocent heart. ——"Mencius·Li Lou Chapter 2"

Reason: Those who are moral can maintain a pure heart like a baby. Using this as a motto can help you guide yourself when you have bad thoughts and prevent you from making mistakes.

5. Those who have gained the right will get many help, while those who have lost the right will get little help. ——"Mencius Gongsun Chou"

Reason: People who have moral principles will have many supporters, while those who have lost moral principles will have very few supporters. Taking this as a motto can help you consider the interests of others when making your own judgments, rather than just coveting your own gains and losses.