Is Plato right when he says that ignorance is the source of all evil? I live in

Is Plato right when he says that ignorance is the source of all evil? I live in the American south, and a large number of the people here are, in my opinion, ignorant; and i recently got into an argument with a class mate of mine who said that ignorance is bliss. At least half of the people at my school have his attitude, they don't care about their education and they prefer to not deal with things that might broaden their horizons. If ignorance is the source of evil, does that mean that my area is a hot spot for evil, or is my definition of evil wrong?

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