There are many famous sayings about honesty in China's ancient books, such as what you come from.

A man without faith doesn't know what he can do-Confucius

Words are impermanent without faith, deeds are impermanent with faith, but interests are everything. If so, it can be described as a villain-Xunzi.

Believing in the land of five elements, there is no location and no fame. Water and Jin Mu are alive. -Zhu

If someone is lonely, loyalty is clothes, and trust is clothes. -Lu Zhaoxi

If you don't believe in yourself, you won't succeed-Mozi

A person's bad faith will lead to a bad reputation-Liu Xiang