It was your great American wit, Mark Twain, who once said, 'Man is the only animal that blushes, and the only animal that needs to.' We are ashamed, are we not, of things we've done in the past. Nobody is free who is unforgiven. Instead of being able to look God in the face or to look one another in the face, we want to run away and hide when our conscience troubles us.
John Stott