"[Evolution Theory] is the motivating factor for guys like Hitler and Stalin and George Bush, by the way, who is a Satan worshipper, like we don't know that."

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Science is showing us that there are neurological (brain) factors that contribute to self-control and willpower, along with learning and upbringing. And when these brain systems are functioning improperly or become damaged, normal levels of self-control and willpower are impossible.

— Russell Barkley