" There is some soul of goodness in things evil, Would men observingly distil it out. For our bad neighbour makes us early stirrers, Which is both healthful and good husbandry: Besides, they are our outward consciences, And preachers to us all, admonishing That we should dress us fairly for our end. Thus may we gather honey from the weed, And make a moral of the devil himself. "

― William Shakespeare , The Complete Works