In this classic text, Aristotle extols a variety of virtues valued by the ancient Greeks and their world. Within, Aristotle gives the reader a schema for understanding both ancient and trans-historical ideas on virtue and relating well to others. His vocabulary and concepts regularly pop up in other works, up to contemporary times; thus, grappling with Nicomachean Ethics makes those other works more understandable. Standing alongside and thinking with Aristotle increases one's ability to discern and decide on right action. As with other philosophical works, be ready to accept befuddlement from time to time, and talk with others about your gleanings as you read (and read again). Also, it is not necessary to agree with all of his conclusions to be aided by his exposition; you may find that you comprehend humans quite a bit better.