Only among those who were engaged in a particular activity did their language remain unchanged; so, for instance, there was one for all the architects, one for all the carriers of stones, one for all the stone-breakers, and so on for all the different operations. As many as were the types of work involved in the enterprise, so many were the languages by which the human race was fragmented; and the more skill required for the type of work, the more rudimentary and barbaric the language they now spoke. But the holy tongue remained to those who had neither joined in the project nor praised it, but instead, thoroughly disdaining it, had made fun of the builders' stupidity.
Dante Alighieri, De vulgari eloquentia, Chapter VII
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