psychology that, if practiced, could reverse our widespread inability to get along with one another, an inability that is the source of almost all unhappiness.

For progress in human relationships, he explains that we must give up the punishing, relationship-destroying external control psychology. For example, if you are in an unhappy relationship right now, he proposes that one or both of you could be using external control psychology on the other. He goes further. And suggests that misery is always related to a current unsatisfying relationship. Contrary to what you may believe, your troubles are always now, never in the past. No one can change what happened yesterday.