There are no secrets to being honest with friends. The promise between friends is also true. They are punctual and trustworthy. In the face of friends' mistakes, they can let go of their own mistakes, and they are also very at ease, and will not be restless with the influence of the external environment. If you want to cultivate one's morality, cultivate one's mind first. The ancients said: be realistic, know and do, be sincere, be upright, cultivate one's morality, keep the family in order, govern the country and level the world.