Taxonomy of Expression ~Materio tanĝanta~ One, upon hearing the first world of the present title, may immediately think of this song which was brought to infamy by this video . -------------------------------------------------------------------------------------------------------------------------------- Let's play around with words a bit. Sometimes, when we replace a single letter of a word, its meaning is altered substantially. For instance, take the words five, a positive integer, and fave , a shorthand term for favorite . Now, sometimes it takes a little more cunning to play with words; for instance, it was noticed one day (in a fit of divine inspiration) by my colleague, friend, and frequent collaborator K. Flynn that the w