As a person, Confucius has no credibility, so he doesn’t know how to do it.

I examine myself three times every day: Am I being unfaithful to others? Make friends but don’t believe it? Are you not used to it? ——Confucius

Taking loyalty as the basic content of self-cultivation requires daily inspection and reflection to see whether one has achieved loyalty.

Confucianism is not precious, but loyalty is considered a treasure. ——"Book of Rites·Confucianism" compiled by Dai Sheng

Confucian people value virtue, so they do not regard gold and jade as treasures, but loyalty.

Faith is like the soil of the Five Elements, with no position or fame, and water, metal, and wood are all waiting for those who live there. ——Zhu Xi

Integrity is like the earth among the five elements. It is unknown, has no (glorious) status, and has no (prominent) reputation. However, among the five elements, water, metal, wood (and other elements) ) nothing exists without soil.

You can’t stand without faith, and you can’t be dishonest. ——Song Dynasty Chao Shuo's "Chao's Hakka"

A person who is not trustworthy cannot gain a foothold in society; a person who is not honest cannot go far.