Aristotle

Aristotle's Categories in the Greek text distributed by OpenGreekAndLatin First1KGreek.

Aristotle's Constitution of the Athenians in the Greek text edited by Frederic G. Kenyon.

Aristotle's Eudemian Ethics in the Greek text edited by Franz Susemihl, with H. Rackham's English translation.

Aristotle's Nicomachean Ethics in the Greek text edited by Ingram Bywater, with H. Rackham's English translation.

Aristotle's On Virtues and Vices in the Greek text edited by Immanuel Bekker.

Aristotle's Poetics in the Greek text edited by Immanuel Bekker.