 It was noted in  Section 1.1  that universals, and especially species and their genera, are related to one another hierarchically. For instance, the species Human Being and the species Horse both fall under the genus Animal. Additionally, individuals are related hierarchically to their species and genera. Hence, Socrates and Cicero fall under the species Human Being and the genus Animal. These relations between universals and individuals are often described in the terms of collection and division. Cicero and Socrates and all other humans are collected into the species Human Being, and the species Human Being and Horse and all other species are collected in the genus Animal. Correlatively, Animal is divided into its species, and Human Being is divided into individual humans. 