Luxury, Seneca warns, uses her wit to promote vices: First she makes us want things that are inessential, then she makes us want things that are injurious. Before long, the mind becomes slave to the body’s whims and pleasures.13 Along similar lines, Musonius tells us that he would rather be sick than live in luxury. Sickness, he argues, may harm the body, but a life of luxury harms the soul as well by making it “undisciplined and cowardly.” Therefore, he concludes, “luxurious living must be completely avoided.”