Quotation
“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.”
Russella Barkley
The idea behind the quotation
Self-control depends not only on learning and upbringing but also on brain systems, whose damage or dysfunction can make ordinary levels of control impossible.