|language=Czech}}</ref> In the early 1970, psychologist Richard Christie made proposition that being manipulator in line with this principle is very nearly synonymous to so called [[Machiavellianism|Machiavellian]] personality. This distinct personality style is then characterized by manipulativeness, cynism about human nature, and shrewdness in interpresonal behavior marked by using tactics that are exploitative, self-serving, and nearly always deceptive.<ref name="Braiker">{{cite book
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|language=Czech}}</ref> In the early 1970, psychologist Richard Christie made proposition that being manipulator in line with this principle is very nearly synonymous to so called [[Machiavellianism|Machiavellian]] personality. This distinct personality style is then characterized by manipulativeness, cynicism about human nature, and shrewdness in interpersonal behavior marked by using tactics that are exploitative, self-serving, and nearly always deceptive.<ref name="Braiker">{{cite book
|author=Harriet B. Braiker
|author=Harriet B. Braiker
|title=Who's pulling your strings? How to break the cycle of manipulation and regain the control of your life
|title=Who's pulling your strings? How to break the cycle of manipulation and regain the control of your life