“The north wind and the sun were disputing which was the stronger, and agreed to acknowledge as the victor whichever of them could strip a traveler of his clothing. The wind tried first. But its violent gusts only made the man hold his clothes tightly around him, and when it blew harder still the cold made him so uncomfortable that he put on an extra wrap. Eventually the wind got tired of it and handed him over to the sun. The sun shone first with moderate warmth, which made the man take off his topcoat. Then it blazed fiercely, till, unable to stand the heat, he stripped and went off to a bathe in a nearby river. Persuasion is more effective than force. ”