Cultures and Languages !!

Its important to preserve and protect these cultures because a lot of them shows what is to be a human being, if we dont protect them we are going to be a single society without any good things to show to the world, many of these cultures prove that there are people that have different believes and actitudes that make us uniques, in the first video Wade Davis said "language is not just a body of vocabulary or set of gramatical rules, its a flash of the human spirit...", i think he wanted us to know that we must preserve those languages and cultures, language and cultures are ways to expres ourselves, we are contributing to make the wold special and more interesting, i disagree with have just one language and one culture because the world would be much boring and we wouldnt have something special and unique to show to the other people from  other countries and cultures.