Further, the existence of a pre-cosmic non-rational soul is suggested also if one considers the world soul and the human soul in conjunction. Already the Timaeus (34c, 41d-e, 69c) suggests a relation between the two. Plutarch takes the human soul to be derivative from the world soul, which means that their natures are similar (De an. procr. 1025A-D; see below, sect. 5). In Republic 4, in the Phaedrus and also in the Timaeus it is argued that the human soul has a rational and a non-rational asp