 In the other of our anchor texts, Aristotle, having just sketched a proof for the existence of an unmoved mover, which he refers to as a principle (arche) and as ‘god’, says something about Speusippus’ views about principles: that he (and the Pythagoreans) suppose that a principle is not characterizable as ‘beautiful’ or ‘good’, going on the analogy of plants and animals, where beauty and goodness emerge in the end state rather than the beginning. So, although we have principles at each level, those principles are not themselves complete entities at that level.