Nicomachean Ethics

Loeb classical library, 73. First printed 1926; new revised edition 1934
The Nicomachean Ethics is the name normally given to Aristotle’s best known work on ethics. The English version of the title derives from Greek Ἠθικὰ Νικομάχεια, transliterated Ethika Nikomacheia, which is sometimes also given in the genitive form as Ἠθικῶν Νικομαχείων, Ethikōn Nikomacheiōn. The Latin, which is also commonly used, can be Ēthica Nicomachēa or, De Moribus ad Nicomachum.
The work, which plays a pre-eminent role in defining Aristotelian ethics, consists of ten books, originally separate scrolls, & is understood to be based on notes from his lectures at the Lyceum, which were either edited by or dedicated to Aristotle’s son, Nicomachus.