Geniuses have shown the mankind new paths. Genius also possesses the capacity to design evil paths most effectively.  A ferocious animal is dangerous. Most dangerous, however, are evil genius. They not only can harm you physically but also mentally.  Hitler is often cited as the most disastrous combination of evil and genius. “The evil genius is not merely wicked, and does not confine his evil deeds to his personal sphere, say an exceptionally cruel murder or two; he is Mephistophelean in his cunning to procure evil on the largest possible scale,” writes Theodore Dalrymple.