In the fourth century a. C., Aristotle founds his school in Athens, a much-improved version of the Platonic Academy, where he himself studied in his youth. Aristotle's teachings do not expire, the author tells us. Extensively tracing the work of Aristotle, inserted in the context of the main episodes of his biography, Edith Hall offers here an update on Aristotelian thought along with an interesting and original proposal: use it today, two thousand four hundred years later, to change our lives.