The subject of this essay is ancient and modern wisdom, especially concerning the existence and powers of the soul. Specifically, I will show three things. First, in both the theological and pre-theological works Swedenborg holds that the ancients are wiser than the moderns. Second, Swedenborg’s search for the soul led him to reevaluate his definition of philosophy and his conception of wisdom. Third, his revealing of ancient wisdom, especially the science of correspondences, is useful to today’s philosopher in understanding and appreciating ancient philosophical texts.