In their everyday behavior they give the appearance of being withdrawn from the center of activity, yet those who know them will recognize the watchfulness that is part of their character. They need great self-discipline, because they are able to recognize the qualities in themselves that make them different from other humans, and to know their utterly conventional natures can be used for great good, or great evil. Their tenacity and will power are immense, their depth of character and passionate conviction overwhelming, yet they are deeply sensitive and easily moved by their emotions. Their sensitivity, together with a propensity for extreme likes and dislikes make them easily hurt, quick to detect insult or injury to themselves (often when none is intended) and easily aroused to ferocious anger. This may express itself in such destructive speech or action that they make lifelong enemies by their outspokenness, for they find it difficult not to be overly critical of anything or anyone to whom they take a dislike.