Bahá'í Faith and auxiliary language
The Bahá'í Faith teaches that the world should adopt an international auxiliary language, which people would use in addition to their mother tongue. The aim of this teaching is to improve communication and foster unity among peoples and nations. The Bahá'í teachings state, however, that the international auxiliary language should not suppress existing natural languages, and that the concept of unity in diversity must be applied to preserve cultural distinctions.
Teaching and purpose 
The teachings of the Bahá'í Faith have a strong focus on the unity of humankind. The Bahá'í teachings see improved communication between peoples throughout the world as a vital part of world unity and peace. The Bahá'í teachings see the current multiplicity of languages as a major impediment to unity, since the existence of so many languages cuts the free flow of information and makes it difficult for the average individual to obtain a universal perspective on world events.
Bahá'u'lláh, the founder of the Bahá'í Faith, writing in the Tablet of Ishráqát and Tablet of Maqsúd, taught that the lack of a common language is a major barrier to world unity since the lack of communication between peoples of different languages undermines efforts toward world peace due to misunderstandings of language; he urged that humanity should choose an auxiliary language that would be taught in schools in addition to one's own native language, so that people could understand one another. He stated that until an auxiliary language is adopted, complete unity between the various parts of the world would continue to be unrealized. `Abdu'l-Bahá, the son of the founder of the religion, called the promotion of the principle of the international auxiliary language "the very first service to the world of man" and its realization as "the greatest achievement of the age in conferring profit and pleasure on mankind."
Bahá'u'lláh stressed, however, that the auxiliary language should not suppress existing natural languages, and that the concept of unity in diversity must be applied to languages. The Bahá'í teachings state that cultural heterogeneity is compatible with unity, and that the Bahá'í teaching of unity requires the embracing of cultural diversity since humanity is enriched by the various cultures throughout the world. The Bahá'í teachings state that having an international auxiliary language would remove the pressure from the natural aggrandizement of majority language groups and thus preserve minority languages, since each person would keep their own mother-tongue, and thus minority cultures.
Choice of language 
Neither Bahá'í literature, nor any of the various Bahá'í authorities, have specified which language should be used as the auxiliary language. The predominant language of the time is not necessarily to be used as the default auxiliary language. Instead, the Bahá'í teachings are that the auxiliary language is to be selected or invented by the world's parliaments and rulers, placing the language in the hands of language planners. Bahá'u'lláh stated that a "world language will either be invented or chosen from among existing languages" and:
Various Bahá'í leaders have made various comments to certain languages and qualities. `Abdu'l-Bahá and Shoghi Effendi made occasional comments favorable to the notion that potential auxiliary languages be simple and easy to learn. `Abdu'l-Bahá also praised the ideal of Esperanto, a constructed language, and there was an affinity between Esperantists and Bahá'ís during the late 19th century and early 20th century. While `Abdu'l-Bahá encouraged people to learn Esperanto, he never stated that it should become the auxiliary language. Also both Shoghi Effendi and the Universal House of Justice, the governing body of the Bahá'ís, emphasized that there is no official Bahá'í endorsement of Esperanto as the international auxiliary language. Today there exists an active sub-community of Bahá'í Esperantists; the Bahá'í Esperanto-League was founded in 1973, and Lidia Zamenhof, daughter of Esperanto founder L.L. Zamenhof, was a Bahá'í.
The selection of the existing language or the creation of a new one each have their advantages; the selection of an existing language allows for a certain portion of the world's population to have already learnt it, but using an invented language would have the advantage of being emotionally neutral.
Mother tongue and unity in diversity 
The Bahá'í teachings on an auxiliary international language does not in itself threaten living languages or cultures; they do not call for cultural uniformity. Instead, the Bahá'í teachings value and promote cultural diversity by stating that there should be unity in diversity. The term "auxiliary" in Bahá'í scripture means that the international language will be taught in addition to one's mother tongue, and that it will be secondary to one's native language. Since the auxiliary language is meant for community-external, inter-community communication, it is functionally separate from one's primary language. While secondary to the primary language of one's culture, it establishes reliable communication between members of differing primary speech communities.
The Bahá'í teachings see minority group members as full members of the broader society, and thus see the need for unique cultural rights. Language is strongly attached to culture. In Bahá'í literature, one's mother tongue is described as "the most profound characteristic of a people", "the garment of the spirit of the people", the "native air which we need for living and dying, which surrounds us from cradle to grave, which is and remains our most personal property." Whereas both cultural and linguistic change are normal and ever-greater world unity expected, the precipitous extinction of non-dominant languages and cultures is therefore undesirable. Since the Bahá'í teachings on oneness of humankind emphasize the value of both diversity and unity in the sense of harmony rather than simple sameness, minority cultural rights can be seen as a matter of cultural justice, and language rights a subset of those cultural rights.
See also 
- Meyjes 2006, p. 27
- Smith 2008, p. 139
- Hatcher & Martin 1998, pp. 96–97
- Bahá'u'lláh 1873-92, p. 127
- Bahá'u'lláh 1873-92, pp. 165–166
- Stockman 2000, p. 9
- Esslemont 1980, p. 164
- Meyjes 2006, p. 29
- Meyjes 2006, p. 31
- Meyjes 2006, p. 30
- Smith, Peter (2000). "Esperanto". A concise encyclopedia of the Bahá'í Faith. Oxford: Oneworld Publications. pp. 134–135. ISBN 1-85168-184-1.
- Meyjes 2006, pp. 28–29
- Bahá'u'lláh (1873-92). Tablets of Bahá'u'lláh Revealed After the Kitáb-i-Aqdas. Wilmette, Illinois, USA: Bahá'í Publishing Trust. ISBN 0-87743-174-4.
- Esslemont, J.E. (1980). Bahá'u'lláh and the New Era (5th ed.). Wilmette, Illinois, USA: Bahá'í Publishing Trust. ISBN 0-87743-160-4.
- Hatcher, W.S.; Martin, J.D. (1998). The Bahá'í Faith: The Emerging Global Religion. San Francisco: Harper & Row. ISBN 0-87743-264-3.
- Meyjes, Gregory Paul P. (2006). "Language and world order in Baha'i perspective". In Omoniyi, Tope; Fishman, Joshua A. Explorations in the Sociology of Language and Religion. John Benjamins Publishing Co. pp. 26–41. ISBN 90-272-2710-1.
- Smith, Peter (2008). An Introduction to the Baha'i Faith. Cambridge: Cambridge University Press. ISBN 0-521-86251-5.
- Stockman, Robert (2000). "The Baha'i Faith". In Beversluis, Joel. Sourcebook of the World's Religions. New World Library. ISBN 1-57731-121-3.
Further reading 
- `Abdu'l-Bahá (1911). `Abdu'l-Bahá in London. London, UK: Bahá'í Publishing Trust: 1982. ISBN 0-900125-50-0.
- `Abdu'l-Bahá (1918). `Abdu'l-Bahá on Divine Philosophy. Boston, USA: Tudor Press.
- `Abdu'l-Bahá (1912). Paris Talks (Hardcover ed.). Bahá'í Distribution Service: 1995. ISBN 1-870989-57-0.
- `Abdu'l-Bahá (1912). The Promulgation of Universal Peace (Hardcover ed.). Wilmette, Illinois, USA: Bahá'í Publishing Trust: 1982. ISBN 0-87743-172-8.
- `Abdu'l-Bahá (1909). Tablets of Abdul-Baha Abbas. Chicago, USA: Bahá'í Publishing Committee.
- Alexander, Antony and Robert Craig (1996). Lango: Language Organization. Bahá'í Library Online.
- Zarqáni, Mírzá Mahmúd-i- (1998) . Mahmúd's Diary: Chronicling `Abdu'l-Bahá's Journey to America. Oxford, UK: George Ronald. ISBN 0-85398-418-2.
- Compilation from the Bahá'í Writings (2008). Adoption of a Universal Language. Bahá'í Library Online..
- Meyjes, Gregory Paul P. (2006). "Language and world order: A new paradigm revealed". In Omoniyi, T.; Fishman, J. A. Explorations in the Sociology of Language And Religion. Volume 20 of Discourse Approaches to Politics, Society, and Culture. Amsterdam: John Benjamins. pp. 26–41. ISBN 9789027227102.