Its foolish to enjoy doing wrong – if you are intelligent, you will take pleasure in wisdom.
God made people intelligent enough to see that he should do what is right. And so the sinner knows that he is a sinner. He knows that his life is not going well. If he wants to cling to sins, he will try to excuse himself in some way, but he cannot fool himself for long. Either he loses his peace of soul or he succeeds in dulling his conscience. The person with a dull conscience will find distractions and interests in many things, but he has not the abiding peace of those who live for Heaven.