How to explain "modesty and faithfulness" in vernacular?

Modesty is the totem of honesty and sincerity, modesty without superciliousness, honesty without stupidity, integrity without deceit, faith without evil, etc., and it is a realm of life. In the explanation of modesty and honesty, it means that sometimes people need to be generous, straightforward and unrestrained, but they can't act rashly. In other words, sometimes people can be heroes, but they can't go too far and act rashly.