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!!"