Full Idea
How can any whole body be moved, unless all its parts be moved together with it?
Gist of Idea
If a whole body is moved, its parts must move with it
Source
Thomas Hobbes (De Corpore (Elements, First Section) [1655], 2.08.05)
Book Reference
Hobbes,Thomas: 'Metaphysical Writings', ed/tr. Calkins,Mary Whiton [Open Court 1905], p.57
A Reaction
This might be a distinguishing mark for a whole physical body. I think it is probably the main mark for ordinary folk. I've never found this idea in Aristotle.
Related Idea
Idea 2351 Aristotle says an object (e.g. a lamp) has identity if its parts stay together when it is moved [Putnam]