When people today undertake to learn a foreign language, they are not interested in speaking it. Mastery of a language makes available to the learner a great deal of worthwhile literature and many current publications. This is the biggest stumbling-block of all for the artificially - constructed tongue. Having no literature of its own, all it can offer is a limited number of translations which are valueless in themselves. Nor can it acquire any literature; for it would have to be used for a great many generations before this could become possible. Moreover, constant use over a long period would bring into being many national dialects and the language would thus defeat its own purpose.
Another serious objection is the fact that a language is shaped by use and not by design. It is a living thing which is forever growing and changing. It takes hundreds of years before it can acquire richness and depth. In an artificial language, however, the meanings of words are rigidly defined. Inflexibility makes for an absence of subtlety, so that no really fine meaning can be conveyed.
Though this quality might be admirable for scientific publications, it greatly impedes the development of any significant literature. Latin was ideal in this respect, for it was a 'dead' language with a literature; an artificial one is "dead" from the start. This makes it likely that existing language barriers will remain with us for a very long time.
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