 As Irène Rosier-Catach has noted, “The construction of words is conceived as a movement. The verb, the pivot of the sentence, signifies action and movement and needs for that reason two terms, a terminus a quo or principium and a terminus ad quem or terminus (Summa Grammatica 66, 78). On one level, physical conceptualization is used to re-define certain notions. Cases are properties allowing an expression to function as a term of movement (Summa Grammatica 34); in this way, the accusative expresses the terminus ad quem. At a second level, Bacon’s conceptualization allows him to state some very general rules for the combination of categories” (Rosier-Catach 1997, 70).