 Xenocrates’ espousal of indivisible magnitudes has led to the conjecture that the pseudo-Aristotelian treatise On Indivisible Lines is at least in part an attack on him, and that the arguments recounted in its first chapter in favor of the claim that there are indivisible lines, which are rebutted in the sequel, might come from Xenocrates. Unfortunately, those arguments are quite obscure, and the text itself is not in very good shape (an admirably concise summary of the first four of these arguments may be found in Furley 1967, 105). But some of the arguments owe a lot to Zeno of Elea: that Xenocrates was influenced by Zeno is only what one would expect, and is confirmed elsewhere (see esp. the passage from Porphyry cited in part above, apud Simplicius on the Physics, Diels 1882, 140.6–18).