Carl Jung, founder of analytical psychology and the person you can blame for every “Are You An Introvert or Extrovert” quiz on your Facebook feed, spoke often of the “persona.” He called it “a kind of mask, designed on the one hand to make a definite impression upon others, and on the other to conceal the true nature of the individual.”Jung saw the persona as a necessary tool for existence in an adult world, but also knew that mismanagement of said persona could lead to any number of downfalls, like becoming that notorious yes-man middle manager who only lives to please.