Sorry, Amos, I must demur. "A poor boy's skull" usually knows how to deal with the Nicene Creed, and how much weight to assign to it. And "Do unto others as you would have them do unto you"--while basically an unattainable ideal, is a useful counter to inborn selfishness.

If you think there is religious brainwashing of children going on in Sunday school, consider how many stay brainwashed--precious few. Adolescent rebellion and their own reading are far more powerful influences.