Once upon a time, the North Wind and the Sun were arguing about which of them was the stronger when a traveller, wrapped in a warm cloak, came along the path. They agreed that the one who would force the traveller to take off his coat would be considered the stronger. The north wind blew with all its might, but the harder it blew, the tighter the traveller wrapped himself in his coat. Finally, the north wind gave up the fight. Now the sun warmed the air with its friendly rays, and after just a few moments the hiker took off his coat. The north wind had to admit that the sun was the stronger of the two of them.

(High German version of the Aesop fable)