Satan's Discouragement

There's an old fable that says the Devil once held a sale and offered all the tools of his trade to anyone who would pay their price. They were spread out on the table and each one labeled. Hatred, malice, envy, despair, sickness, sensuality - all the weapons that everyone knows so well. But off to one side lay a harmless looking wood-shaped instrument marked "discouragement." It was old and worn looking but it was priced far about the rest. When asked the reason why, the Devil replied, "Because I can use this one so much more easily than the others. No one knows that it belongs to me, so with it I can open doors that are tightly bolted against the others. Once I get inside I can use any tool that suits me best."