Introduce Esperanto as a foreign language subject in European high schoolsIt has been proved scientifically in Paderborn, Germany, that Esperanto being taught as a first foreign language has propaedeutic value regarding other languages (students who study Esperanto first, as a foreign language, learn other languages more easily and quicker). If all the countries in Europe would commit themselves to teaching Esperanto at high school level, in a few years, billions could be saved in translations and printing of documents, and the youth could travel more freely within Europe, without having to learn many languages.