The idea come from “The Original Sins”. When we were born, we already have seven original sins: Pride, Greed, Lust, Wrath, Envy, Gluttony, Sloth. It’s called “The Seven Deadly Sins”, but according to me, it’s not bad, even good if we know how to keep it balance. Ex: if we have a little Pride - it’ll become our confidence, if we have a little envy – we’ll have competition and our life will development. But, when we can’t control it, it’ll become “Deadly”.