This, combined with a few other books that I have, have pointed out that self control comes from the frontal lobe.
Natural self control. You know, the whole "human" part of your brain? The more front it is, the closer to the end of evolution it is. Most people act at the back of their brain, which doesn't allow for intelligence. So really, being unable to control yourself sexually is a sign that you are, after all, retarded.
Wanting sex, after all, is a brain disorder and not human. Hedonists should be put down for having brain problems.