It would be better for the world if we were to let the majority of languages die out. According to Wikipedia, there are more than 5,000 languages in the world, not to mention those dialects and body languages. Let's assume that if we eliminated the majority of languages and only maintained those major languages such as English, what kind of world would it be? There would be no more difficulties to communicate with foreigners. We would first time have a chance to let our information, new technologies and ideas quickly reach anywhere without the need of translation, which might bring the most significant improvement and development than any moment in our history. Does it sound great? Perhaps not as good as we imagine. Some people might argue that language is just a tool to communicate. The value of a minority language is diminished as people abandon it. While referring to researches, languages somehow can represent cultural diversity. The language we use shapes the way we see the world, describe our experiences and express our feelings. Meanwhile, the way we live and our surroundings will also conversely create our language. Language is the boundary of our world, which means if something isn't in one's language, it does not exist in his or her world either. Here is an example, for Mandarin speaking people might notice that Chinese words for phone and giraffe actually mean "electronic speaking"(電話) and "the deer with the long neck"(長頸鹿) because those things were not introduced or not existed in Asia before. In some indigenous tribes, we would probably not find vocabularies to indicate mobile phone or computer, but instead we will find some specific words to describe the intricacies of different natural phenomena, weathers or even some intangible ideas, which we cannot find any equivalent or similar words in English. This is why language matters to cultural diversity. Back to our question, would it bring us a better world if we had fewer languages? It's hard to conclude. However, due to the influence of the globalization, language diversity wanes now. The anthropologist Levi Strauss, who spent many years living in those tribes in South America to record their cultures and languages, once said that he wished he could back to 50 years ago, then he would be able to see and document those lost Indian cultures. If we don't find an apt way to intervene or do something to protect those endangered languages in time, we will definitely regret losing the chance to observe some amazing and fantastic things that we haven't known yet.