It is known, to the force of a single pound weight, what the engine will do but, not all the calculators of the National Debt can tell me the capacity for good or evil, for love or hatred, for patriotism or discontent, for the decomposition of virtue into vice, or the reverse, at any single moment in the soul of one of these its quiet servants, with the composed faces and the regulated actions.
A thick, black cloud swirled before my eyes, and my mind told me that in this cloud, unseen as yet, but about to spring out upon my appalled senses, lurked all that was vaguely horrible, all that was monstrous and inconceivably wicked in the universe. Vague shapes swirled and swam amid the dark cloud-bank, each a menace and a warning of something coming, the advent of some unspeakable dweller upon the threshold, whose very shadow would blast my soul.
Evil (ignorance) is like a shadow. It has no real substance of its own, it is simply a lack of light. You cannot cause a shadow to disappear by trying to fight it, stamp on it, by railing against it, or any other form of emotional or physical resistance. In order to cause a shadow to disappear, you must shine light on it.