Touching on some aspects of the psychology of Alfred Adler, who is considered one of the three fathers of depth psychology, along with Sigmund Freud and Carl Jung. Source(s): The Courage to Be Happy: True contentment is within your power, by Ichiro Kishimi and Fumitake Koga, Allen and Unwin 2016 Automated transcript https://otter.ai/u/jHe5q-QrDI84neYX5Yb_1Me6GDo