 His early synoptic introduction to ethics (1494b) closely follows the major divisions of Aristotle’s treatise. Lefèvre begins with a description of the ethical life as one which has to be learned: virtues are acquired through long habituation rather than being innate to the human soul. Humanity possesses many kinds of good: exterior (acquired), interior (given by nature), and useful goods (those instrumental for pursuing other goods). Virtue is defined as