I'm finishing Augustine's Confessions. At a certain point, he argues that "shapeless" (I'm not reading an English translation; the Latin word is "informis" ("informitas" as a noun)) physical entities are possible. I didn't understand his argument and anyway can't imagine how some physical body could be shapeless. Perhaps an infinitely large or infinitely small body could be shapeless, but infinitely small things are hardly conceivable. Would you explain me how could some physical body be shapeless? Or perhaps Augustine is talking about something else I didn't get? (it's in Book XIII).