Ecclesiastes 1:18 For with much wisdom comes much sorrow; the more knowledge, the more grief.
Yes, it's in the bible, folks. Better believe it. Don't get too smart, that will only give you grief and sorrow, and who are you going to turn to then?
It's better to stick with the original sin idea. Then at least you're guilty of something you didn't do yourself.
(Keep them dumb and controllable.)