 If we take “see” (opôpamen) to mean sense perception, then this characterization suggests that such perception is by the likeness of external elements to internal elements. Then, since roots and principles in the perceiver are related to the roots and principles in the perceived object, the passage suggests that elements in one correspond to elements in the other. This passage, of course, does not make clear how this correspondence results in the perception of color and shape. Still, Empedocles is able to explain, by way of “effluences” how the elements in the perceived object affect the elements in the perceiver. Everything gives off effluences (B 89 = D 208). These are tiny particles that flow out from objects continually. One can then grasp one half of the correspondence; effluences from the perceived object flow to the perceiver, in particular to the perceptual organ. Then, effluences of fire would make contact with the fire in the eye. On this basis, since fire, e.g., is white, one can construct an account of the way that fire, and the other roots, are responsible for color perception. However, these sorts of explanation do not encompass the perception of Love and Strife, which seems to depend on deduction (B 17.21 = D 73.252). 