Full Idea
Natural objects include animals and their parts, plants and simple bodies like earth, fire, air, and water.
Gist of Idea
Natural objects include animals and their parts, plants, and the simple elements
Source
Aristotle (Physics [c.337 BCE], 192b09)
Book Reference
Aristotle: 'Physics', ed/tr. Waterfield,Robin [OUP 1996], p.33
A Reaction
Interestingly, he seems to include lives, and elements, but nothing in between, like planets or stones.
Related Idea
Idea 17042 Natural things are their own source of stability through change [Aristotle]