The multiplicity of languages is a major dividing factor in world society, reinforcing geographical, socio-economic (especially caste or class), political, ideological, professional and religious separatism. It prevents or hinders communication and the spread of education, and therefore aggravates international misunderstanding and mutual suspicion. Multilingualism within a country results in poor communications between members of different language communities and between those communities and the government. It can lead not only to mistrust and to political tension, but also to poor levels of literacy and problems in the judiciary when different languages may be used and transcripts required in order for a case to be heard at all.
Language barriers impede international communication in general and individuals in particular by rendering them unable to speak and correspond with whomever they wish, or read the periodicals and books they want to read. Bilingualism enables people to participate fully and directly in world culture and universal dialogue; monolingualism leaves the individual with a more parochial, and fearful, worldview.