“It is no good to tell an atheist that he is an atheist; or to charge a denier of immortality with the infamy of denying it; or to imagine that one can force an opponent to admit he is wrong, by proving that he is wrong on somebody else’s principles, but not on his own. … we must either not argue with a man at all, or we must argue on his grounds and not ours.” (from St. Thomas Aquinas: The Dumb Ox, by G.K. Chesterton)