We must assume that the first words men used had a much broader meaning in their minds than do words employed in languages already formed; and that because men were ignorant of the division of discourse into its constituent parts, they first gave each word the meaning of a whole sentence … Furthermore, general ideas can be introduced into the mind only with the help of words, and the understanding grasps them only through sentences. This is one of the reasons why animals cannot formulate such ideas or acquire the perfectibility that depends on them. When a monkey goes without pause from one nut to another, does anyone think it has a general idea of this sort of fruit and compares the two nuts with an archetype? Certainly not.