Many people nowadays reckon that disappearing languages didn't serious problem in contemporary world. While others believe there will be less problem if some of them die out- a belief which I strongly disagree with. First, languages is cultural heritage which use not only for chatting but also for studying history of this county where language is. Due to the fact, scientists can research different facts which is known by languages.There is even specialty science such as linguistics, which deals with languages and their origin. Second, saving languages help countries remain sovereign and independence. When the people speak the native language they show their respect for the culture of their country. Languages appeared many centuries ago, thus they have a huge history of which we should keep. Because the language was not created just as. And the last but not least, is that many young people interest in knowledges its historical roots and the language spoken by their ancestors. Language is a unique tool of thinking and understanding the world, because every thought is a kind of language construct. While the сitizens speak their native language, they are alive. Not less important in the preservation of the native language is the transfer of knowledge and valuable experience to the younger generation. To sum up, I believe that it is important do not allow languages to disappear