Abd al-Latif constantly held authors defined by him as Moderns distinct from the Ancients and he unleashed a harsh polemic attack against the works of the former. His privileged targets were Avicenna and Fakhr al-Din al-Razi whom he considered, as far as it was possible, even worse than Avicenna. The writings of these authors in fact, if compared with those of the Ancients, reveal their low scientific level, are confused, and lack detailed analysis.