 As we have seen, in his first published paraphrases (1492), Lefèvre reorganized natural philosophy under the influence of Ermolao Barbaro’s translations of Themistius’s Paraphrases of Aristotle. His own epitomes were of the Physics, On the Heavens, the Parva naturalia, and On the Soul. As with other disciplines, it is difficult to identify a cohesive, distinctive set of Fabrist “doctrines” in these works, because the explicit goal was to digest Aristotle himself faithfully, not to identify and counter potential rivals. Characteristically, his paraphrase of the Physics begins with a diagram of the terms basic to Aristotelian natural philosophy: the elements; the four causes; nature; the many kinds of motion; and problematic terms such as place, vacuum, the infinite, and time. The paraphrase itself proceeds to reorganize Aristotle’s doctrines into opinions, conclusions, and arguments—and, very occasionally, questions and doubts—which closely follow the contours of Aristotle’s own work.