Full Idea
They say that one argument for void is that otherwise local motion (that is, locomotion and growth) would not exist: for there would not seem to be motion if there were no void, for what is full is incapable of receiving anything.
Gist of Idea
Growth and movement would not exist if there were no void to receive them
Source
Democritus (fragments/reports [c.431 BCE], A019), quoted by Aristotle - Physics 213b03
Book Reference
Democritus: 'Early Greek Phil VII: Democritus', ed/tr. Laks,A/Most,G [Harvard Loeb 2016], p.101
A Reaction
The modern concept of a 'field' seems to have removed the possibility of a genuine 'void'.