Let us imagine a language for which the description which Augustine has given would be correct. The language shall help a builder A to make himself understood by an || is to be the means of communication between a builder A and his assistant B.
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¤ A is constructing a building out of building stones || blocks; there is a supply of || are cubes, columns, slabs and beams. B has to hand him the building stones in the order in which A needs them. For this purpose they use a language consisting of the words: “cube”, “column”, “slab”, “beam”. A shouts || calls out the words; – B brings the stone that he has learned to bring at this call.
     Take || Regard this as a complete primitive language.