All histories do show, and wise politicians do hold it necessary that, for the well-governing of every Commonweal, it behoveth man to presuppose that all men are evil, and will declare themselves so to be when occasion is offered.
Evil is a moral entity and not a created one, an eternal and not a perishable entity: it existed before the world; it constituted the monstrous, the execrable being who was also to fashion such a hideous world. It will hence exist after the creatures which people this world.
No evil is without its compensation. The less money, the less trouble; the less favor, the less envy. Even in those cases which put us out of wits, it is not the loss itself, but the estimate of the loss that troubles us.
Evil is neither suffering nor sin; it is both at the same time, it is something common to them both. For they are linked together; sin makes us suffer and suffering makes us evil, and this indissoluble complex of suffering and sin is the evil in which we are submerged against our will, and to our horror.
The Supreme end of education is expert discernment in all things -- the power to tell the good from the bad, the genuine from the counterfeit, and to prefer the good and the genuine to the bad and the counterfeit.