Out of good intentions, a person makes promises that he can't fulfill later. In fact, this person is a coward who is afraid of upsetting people, or a drug addict who craves a moment's pleasure. All his motives are very good, but since he is a coward and a liar, he does not have the strength to fulfill his words.
The art of conversation is the art of loving one's neighbor. One must love one's neighbor. Love is honesty, benevolence, joy, usefulness, respect, tolerance, kindness, mindfulness, relaxation, and the absence of fear.