I speak three languages and appreciate the language diversity as each of them provides a unique window to perceive and express the universe. We need, however, a

I speak three languages and appreciate the language diversity as each of them provides a unique window to perceive and express the universe. We need, however, a common (universal) language that allows mankind to create a global culture, a global identity (above and including all national identities) and to enable general understanding and practical communications in all matters. This language should be taught everywhere in addition to the local language. We cannot expect to for the different linguistic communities (or the world in general) to renounce to a language, but at the same time the general well-being calls for a common language.