This volume contains a fragment from Aristotle's Peri Hermeneias [16a1-17a7], with a translation into English and a commentary. This fragment is crucial to the understanding of Aristotle's thinking about language. It is followed by (translations of) commentaries on Aristotle's text by scholars between 500 and 1750, showing how his text was perceived over time. The commentaries are by Ammonius, Boethius, Abelaerd, Albertus Magnus, Thomas Acquinas, Martinus de Dacia, Johannes a S. Thoma, and James Harris. Each commentary is in turn commented upon by the compiler of this volume.