 This process is accomplished by us spontaneously. Pereira said that it is simply a quality that belongs to our soul by nature and allows us to extract species from genera. We do all this by ourselves and in ourselves, since, as he repeatedly emphasized, the intellect, the act of thinking, and the object thought are the same, i.e., the unique and indivisible human soul (AM: I.455; see González Vila 1975: 28–30).