The Problem With Internet Quotes T-Shirt
Sometimes it's hard to attribute a quote. We can't be sure Abraham Lincoln *didn't* say this at one time or another - perhaps "internet" had a different meaning back then, like "to wax one's feet".
In any case, this t-shirt is a good one and you should by it. After all, like the great Mohatma Gandhi said, "You're only as good as the funniest shirt you have".