To see which was the stronger. the sun and the wind challenged each other to strip the clothes from the first passerby.
The wind puffed with all the air in its lungs; but the more it blew the more the man drew his clothes tight around him and feeling a bit cold, he even pulled on a cloak.
The sun didn't do anything so strenuous; all it did was shine. And gradually the man grew hotter and hotter until he took off all his clothes to go for a swim. Which just goes to show that gentle persuasion is more effective than violence.