Once there was a debate between two countries, USA and China, one thousand years ago.

Ten distinguished people from each country met in the Himalayas for the debate. The debate was on who was most important - the sun or the moon. Each side presented their arguments and counter-arguments for days but they could not settle.

Finally on the 11th day the Americans defeated the Chinese in the debate and concluded that it was the moon which was more important than the sun, "because the moon gives us light in the night when it is dark, but sun gives us light in the day-when it is not necessary!!"