" no man can come to Christ until he truly knows himself to be a sinner. The self-righteous man cannot come to Christ; for what is implied in coming to Christ? Repentance, trust in his mercy, and the denial of all confidence in one’s self. Now, a self-righteous man cannot repent and yet be self-righteous. He conceives that he has no sin; why, then, should he repent? "

― Charles Haddon Spurgeon , The New Park Street Pulpit