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The philosophy of Robert (iosseteste (1170-1232) centers round the idea of light, so dear to the mind of Augustinian. He set up his thoery at Oxford university where the general tendency in metaphysics and psychology was conservative, Augustinian, while at the same time an interest was developed in emperical studies. Grosseteste who was the chancellor of Oxford university attempted to combine these two factors and his metaphysics of light well afforded some ground for his emperical studies on the physics of light which had been already established by Aihazen.