A Doomsday Convenience. — A good conscience is only a good feeling won through performing deeds in keeping with one’s grasp of morality. Thus too often a cheap victory, or a deplorable one, when that grasp is weak, or when the hand is elsewhere, strong in shaping another object: a self-serving fake of morality. Conscience as arbiter of goodness was an evil invention. Of all the countless inventions of the modern world, this may be its most fateful, and one of its most convenient.