Full Idea
No continuum can be composed of indivisibles: e.g. a line cannot be composed of points, the line being continuous and the points indivisibles.
Clarification
An 'indivisible' is an 'atom'
Gist of Idea
A continuous line cannot be composed of indivisible points
Source
Aristotle (Physics [c.337 BCE], 231a23), quoted by Ian Rumfitt - The Boundary Stones of Thought 7.4
Book Reference
Rumfitt,Ian: 'The Boundary Stones of Thought' [OUP 2015], p.210
A Reaction
Rumfitt observes that ' the basic problem is to say what the ultimate parts of a continuum are, of they are not points'. Early modern philosophers had lots of proposals.