"He divided the universe in forty categories or classes, these being
     further subdivided into differences, which was then subdivided into
     species. He assigned to each class a monosyllable of two letters; to
     each difference, a consonant; to each species, a vowel. For example:
     de, which means an element; deb, the first of the elements, fire;
     deba, a part of the element fire, a flame." [...]

     Jorge Luis Borges, The Analytic Language of John Wilkins