Tomarchio prefaces this Aristotelian sequence with a sequence of readings in Medieval grammatica speculativa, or philosophy of language. This propaedeutic sequence begins with an ancient source to which that metaphysically minded 'grammar' recurred, namely Augustine's De magistro, or On the Teacher. It is a dialogue between Augustine and his son about the triadic relation of the spoken word to the word thought and the thing thought about. This aporetic dialectic is effective in awakening students to the theoretical stakes of Logic. Similarly, from later theological inquiries into language for purposes of scriptural interpretation more general theories of language emerged. The theoretical uses made of Aristotelian Logic by the Jewish theologian Maimonides and the Catholic Thomas Aquinas whet student appetite for the technical matter of the Organon sequence to follow.