Addressing the reader as if he or she were there with him as a peer, Emerson states that other people will always be part of the world Emerson perceives, but never part of the metaphysical realm in which Emerson’s soul moves. They are “a picture and effigy” of a soul like Emerson’s. This language recalls the discussion of imitation in Plato’s
Republic, in which the things of this world are described as mere shadows, or imitations, of the perfect truths that exist in the metaphysical realm. Emerson’s metaphor of friends as leaves that grow from his soul—not essentially part of his soul, but projections of it—also has classical resonance: specifically, the famous metaphor of human lives as leaves that cyclically grow and then fall, made by Glaukos in the
Iliad. The image not only resonates with one of the most famous epic poems in Western literature, but also with scientific discourse, signaling that Emerson views friendship as governed by the laws of nature, rather than individual will.