That Galen is some kind of theist is clear. His philosophical theology is seen especially in texts such as UP and Foet. Form., where he argues that the manifest suitedness of biological organisms and individual structures—especially those observed in anatomy—to their functions clearly proves their organization by some extraordinary, indeed divine, intelligence. In line with his epistemic caution, however (see §3.4 above), he is not able to be specific about the nature or identity of this divine intelligence. The key feature of Galen’s theology is the role it plays in teleological explanation (although, as we have seen, the teleological account is at times presented in quite strikingly anthropomorphic terms).