 Most scholastic authors favoured Avicenna’s position over Averroes’s, but within this mainstream position there was disagreement about the manner in which God relates to the subject of metaphysics, being as being. Albertus Magnus defends Avicenna against Averroes’ criticism. Being as being is the subject of metaphysics, whereas the divisions and accidents (passiones) of being are what is sought after, among them God and the separate divine beings (Metaph. I.2, Phys. I.3.18). Thomas Aquinas’ position is again much influenced by Avicenna: The subject of metaphysics is being as being (or ens commune), whereas God is that which is aimed at in this science, insofar as he is the cause of all being (In Metaph., prooem.). But, other than Avicenna, Thomas argues that God is the proper subject of a different science, the principles of which are given in revelation: theology (Summa theol. Ia q.1).