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One man’s trash is another man’s treasure, isn’t it? So, despite his wife’s assertion that nobody would buy his old books, this man hoped someone might be interested. Even if they didn’t intend to read the books, they might purchase them just to assist him in proving his wife wrong.

In addition, this man rapidly sold out of his old books, thanks to his clever sign that read, “Prove my wife wrong, buy a book.” We can imagine that quite a few men relished the chance to prove their wives wrong, all for the modest price of five dollars. Furthermore, he never claimed people would read the books; he knew they’d buy them, and he was correct.