Temptation

There is a paragraph in Lewis' Screwtape Letters where the older demon tells the younger demon to convince his person that chastity is unnatural and the only way to make temptation go away is to give in to it (this belief is called "our best weapon"). This is absolutely true - one of the great lies of the devil that I constantly consider and it actually helps me deal with temptation, not just sexual as was inferred. When I want to say or eat something bad I think of how my desire would go away if I just did it.

This great lie is believed by many atheists and half-ass Christians as well in the realm of sex. They see supressing sexual desires outside of marriage as unnatural. The desires will only get stronger and eventually come out as something more perverse than simply giving in immediately. Sometimes it is thought of as impossible to preserve sex for marriage as the desires will become too powerful. What an ingenious lie - take some truth and twist it so maliciously. Again, the preversion of the best is the worst. Note any reference to Scripture is forgotten and one attempts to create morality with pure reason from one's own head. As with any such attempt, common sense is also forgotten and while one has confidence that they were reasoned into such a belief they actually forsook the real world in favor of the idealized reasonable world.