 An argument in Aristotle (Physics 1.4, 187b14–21) is sometimes taken by later writers as evidence that Aristotle allowed for the existence of minima in natural things. Aristotle writes that there is a smallest size of material substrate on which it is possible for the form of a given natural tissue to occur. Blood and bone, say, are all materially composed of given proportions of earth, air, fire, and water: there needs to be a certain minimal amount of these material components present before the form of blood or bone can occur. This doctrine—while surely compatible with Aristotle’s view that the material components are nonetheless continuous and divisible at any point—is sometimes read by Neoplatonist commentators and later sources interested in rapprochement with atomism as evidence that Aristotle endorsed the existence of minimal physical parts.