The real acts of a real devil you know have been made acceptable by the fictitious actions of a nonexistent devil that you do not know.

The advantage to fighting the evils that are in plain sight is the fact that it is quite easy to win-over the "opposition".

If you can see something, and it is wrong, you can fight it with a reasonable chance of success. Fighting the nonexistent is worse than pointless: Don Quixote tilted at windmills, but at least windmills are real.

Better the Devil you know than the Devil you don't

The devil was the first democrat

Son, the greatest trick the Devil pulled was convincing the world there was only one of him.