Discouragement

Perhaps you've heard about the devil's garage sale.  His tools were on display, priced and labeled.  Hatred, murder, lust, anger, and all the rest.  At the end of the table was a tool that was more worn than any other.  It bore no name, but had the highest price of all.  Someone asked the devil what that tool was.  "Discouragement," he replied.  "Why is it priced so highly?"  "Because no one knows it's mine."