We present here the first translation into a modern language of the anonymous commentary on the second book of the Nicomachean Ethics. It is an evidence of the style of exegetical work that was being done in the Peripatetic schools during the 2nd–3rd century AD, and a testimony to a particular version of 2nd century Aristotelianism. Even if the comment is not continuous, one gets the impression of listening to a good lecturer illustrating Aristotle’s text. He paraphrases it at times, (...) makes comparisons with other passages of the corpus, illustrates the structure and the logic of the discourse, and shows the difference between Aristotle’s positions and those of other schools. In the most theoretically interesting parts of the commentary the anonymous discusses aporiai, and opposes Aristotle’s ethical theories to other schools, especially to the Stoics. (shrink)