 Maimonides set the tone of this Jewish approach to Averroes by affirming in his letter to Samuel Ibn Tibbon: “Take care not to read Aristotle’s books without the commentaries on them: those by Alexander (of Aphrodisias), those by Themistius, and those by Averroes” (Marx 1934–1935, 378). There are some clues to the fact that Maimonides and Averroes agreed in some key points of their doctrines, especially in the fields of metaphysics and theology; however, Maimonides explicitely declared in a letter to his disciple Joseph ben Judah, written when he had just completed some parts of the Guide, that he had received a copy of most of Averroes’ commentaries on Aristotle, but had not yet read them (about the relationship between Maimonides and Averroes, see Pines’ observations in Moses Maimonides 1963, 1:cviii-cxxi). As a matter of fact, a concrete, sure proof of Averroes’ influence on Maimonides’ philosophical thought has not yet been found; but this does not exclude that he really knew well Averroes’ philosophy. In any case, Maimonides opened the way to a sort of adoption of Averroes as an unofficial, “Judaizing” interpreter of Aristotle: the many Western European Jewish followers of Maimonides’ thought (active in Spain, Provence, and Italy in the 13th-15th centuries) seem to have referred to the above words as a justification for employing the commentaries of Averroes in reading and interpreting Aristotle’s works. Significantly, they did not usually employ either Alexander or Themistius, i.e., the other two commentators recommended by Maimonides. Their particular choice of Averroes might be explained either because of the example given by contemporary Latin Christian commentators, or because of the easier availability of his commentaries in Spain (where they had been written and had spread during Averroes’ life) with respect of those by al-Farabi, Avicenna and Ibn Bajja, or because of the didactic usefulness of them for knowing in detail Aristotle’s words and the opinions of all the other Greek and Arabic commentators, whom Averroes quoted and discussed in his works. Shem Tov Ibn Falaquera, in the introduction to his work The Opinions of the Philosophers (a detailed commentary on Aristotle’s physics and metaphysics), affirms: “All that I have written here corresponds to Aristotle’s words, as they are commented on by the sage Averroes. He was the last of the commentators (of Aristotle), and collected the cream of the works of the previous commentators, as well as of Aristotle’s words”.