Cf. Bödder, Psychologia Rationalis, pp. 381-383. No two human bodies are perfectly alike, and no two individual men: but it remains a question for the curious to consider whether the individual peculiarities that distinguish man from man are due to bodily conformation merely, or whether there are soul-peculiarities also, a peculiar soul being from the first created and infused into a correspondingly peculiar body. St Thomas seems to favour the second alternative. See Chap. LXXXI, reply to arg. 2, with note.
Of God and His Creatures: 2.75