The Sixth I_sh_ráq (Effulgence) is Concord and Union amongst men. Through the radiance of Union have the regions of the world at all times been illumined, and the greatest of all means thereunto is the understanding of one another’s writing and speech. Ere this, in Our Epistles, have We commanded the Trustees of the House of Justice, either to choose one of the existing tongues, or to originate a new one, and in like manner to adopt a common script, teaching these to the children in all the schools of the world, that the world may become even as one land and one home. About the time when this proposal of Bahá’u’lláh was first given to the world, there was born in Poland a boy named Ludovic Zamenhof, who was destined to play a leading part in carrying it into effect. Almost from his infancy, the ideal of a universal language became a dominant motive in Zamenhof’s life, and the result of his devoted labors was the invention and widespread adoption of the language known as Esperanto, which has now stood the test of many years and has proved to be a very satisfactory medium of international intercourse. It has the great advantage that it can be mastered in about a twentieth part of the time required to master such languages as English, French or German. At an Esperanto banquet given in Paris in February 1913, ‘Abdu’l-Bahá said:— Today one of the chief causes of the differences in Europe is the diversity of languages. We say this man is a German, the other is an Italian, then we meet an Englishman and then again a Frenchman. Although they belong to the same race, yet language is the greatest barrier between them. Were a universal auxiliary language in operation they would all be considered as one. His Holiness Bahá’u’lláh wrote about this international language more than forty years ago. He says that as long as an international language is not adopted, complete union between the various sections of the world will be unrealized, for we observe that misunderstandings keep people from mutual association, and these misunderstandings will not be dispelled except through an international auxiliary language.