Note 161 — PART II. (continued 2)
Reading edition
S. Thomas explains this point in the following words: Quum magnitudo sit divisibilis in infinitum, et puncta sint etiam infinita in potentia in qualibet magnitudine, sequitur quod inter quælibet duo loca sint infinita loca media. Mobile autem infinitatem mediorum locorum non consumit nisi per continuitatem motus; quia sicut loca media sunt infinita in potentia, ita et in motu continuo est accipere infinita quædam in potentia.—Sum. Theol., p. 1, q. 53, a. 2. This explanation is identical with our own, though S. Thomas does not explicitly mention the infinitesimals of time.