Nietzsche circles genealogy of concepts

It can be said overall that Nietzsche believed that madness is the usual and natural state associated with the fates of genius men, saints, and prophets, and the status of madness as a familiar pathological condition cannot be undermined... Nietzsche attributed the origin of this confusion to a mistaken conclusion about the phenomenon of emotional excitation: as humans in general, when they noticed that emotional excitation often results in clarity of mind and happy suggestions, believed that they could reach through it the happiest perceptions and the noblest ideas, and "thus the madman was regarded as wise and a miracle-giver"... Madness is what paved the way for new opinions that broke the shackles of customs and revered superstitious beliefs, and therefore all those superior men driven by an irresistible urge to free themselves from the slavery of morality and declare new laws, are not truly mad, unless they become so, or pretend to madness. Plato, as Nietzsche mentioned, expressed all of this clearly when he said: "Madness was behind all the blessings that Greece enjoyed."