It got into some interpretations of Genesis. Where people think of Knowledge of Good and Evil as having sentience, or smarts instead of judging things.
And the idea of Big Brain Doctrine, where the curse given to people for taking knowledge of Good and Evil was pain in child birth, big brain size, not monkey brain, and having to work the fields, side effect of ambition.
There have been some people that have interpreted that as meaning people should be dumb not smart, or that people should not think and feel.
Other people interpret it as desires above moderation, or thinking a person can judge if another person has worth of value by saying they are good or bad. Desires above moderation are things like greed with no end, or wanting what your neighbor has, that cause social issues in society, and strife in ones own life. Although there are forms of justice that can say your neighbor should be in more moderate conditions, that is not saying you should have what they have. It can be saying what can help society by fewer consolidations and more moderation.
Pink Floyd - Wish You Were Here
http://www.youtube.com/watch?v=QCQTr8ZYdhgSide note, that is why the Nazi's sent people around the globe measuring size of peoples heads.