English, once accepted as an international language, is no more secure than French has proved to be as the one and only accepted language of diplomacy or as Latin has proved to be as the international language of science.
Edward SapirBoth French and Latin are involved with nationalistic and religious implications which could not be entirely shaken off, and so, while they seemed for a long time to have solved the international language problem up to a certain point, they did not really do so in spirit.
Edward SapirThe fact of the matter is that the 'real world' is to a large extent unconsciously built up on the language habits of the group.
Edward Sapir