Zhu Xi, a Neo-Confucianist in the Song Dynasty, thinks that a sincere person is true and innocent. "Honesty" is a virtue. "Faith" means keeping your promise, being consistent in words and deeds, and being honest. Shuo Wen Jie Zi holds that "people's words are believed", and Cheng Yi holds that "what is true is believed." It can be seen that "faith" not only requires people to speak honestly and reliably, but also requires people to do things honestly and reliably.
1. The smartest person in the world is the most honest person, because only honest people can stand the test of facts and history.
2. Keeping a promise is like defending your reputation.
3. He who wins the trust is the happiest, and honesty is the most innocent.