Abstract
"What difference does it make? As long as I'm not hurting anyone else, I should be able to live with my girlfriend." "I never loved by wife. Don't I deserve to be happy?" "I needed that money more than he did, so it's okay that I took it. Besides, he owes me for the time when..." Justification for sin comes easily to most people-including Christians. However, conscience has an ally: physics. Observation and personal experience suggest that physical laws work on the side of obedience to God's laws.