تعریف این عبارت در مقدمۀ کتاب The Secrets Behind Subtle Psychology:
You know why most people have a tendency to not get people to do what they want and achieve the success they desire in life as well as get talked into things they don't want to do? It's because they don't know that there are techniques used that involve subtle psychology—a way to get people and you for that matter to do things . without them knowing
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