 Fakhr al-Din al-Razi (1149–1209), in dealing with his conception of physics and the physical world in his "Matalib", discusses Islamic cosmology, criticizes the Aristotelian notion of the Earth's centrality within the universe, and "explores the notion of the existence of a multiverse in the context of his commentary," based on the Quranic verse, "All praise belongs to God, Lord of the Worlds.