Satisfactory answer

If a person has no faith, he does not know what he is capable of - Confucius

There is no constant faith in words, and no constant chastity in deeds. Only profit lies in everything. Qing, if so, he can be called a villain - Xunzi

Belief is like the soil of the five elements, with no position and no fame, and water, metal, and wood are all waiting for those who live there.

——Zhu Xi