Abstract

Aristotle is one of the greatest philosophers who have written on the nature of man. And when he chose to write on man and his pursuit of happiness, he did it by describing carefully the virtues which together constitute the good life. He tells us that moral virtue in general is a habit of choice, essentially consisting in the preservation of the mean, relatively to the persons concerned, as determined by rule, i.e., by the rule by which the prudent man would determine it. In the pursuit of true happiness, then, we must be guided by the prudent man. Hence the importance of prudence in the moral life. For Aristotle, as for St. Thomas, prudence is the auriga virtutum. It deserves careful study, and indeed, it has been studied profoundly by both Philosopher and Theologian. They are in agreement for the most part, but on one point at least they differ greatly. For a better understanding of a virtue Aristotle very often describes the corresponding vice. The contrast of virtue and vice is looked upon as an Aristotelian technique. But there is one vice to which Aristotle devotes no attention: the vice of imprudence. St. Thomas, on the other hand, has no hesitation in treating specifically of the vice of imprudence, its special place and its various parts.