.

OF THAT THING WHICH IS BEYOND THE WORLD, AND WHETHER IT BE A.
VACUUM OR NOT.
Pythagoras and his followers say that beyond the world there is a vacuum, into which and out of which the world hath its respiration.
The Stoics, that there is a vacuum into which infinite space by a conflagration shall be dissolved.

Posidonius, not an infinite vacuum, but as much as suffices for the dissolution of the world; and this he asserts in his first book concerning the Vacuum.

Aristotle affirms, that a vacuum does not exist.

Plato concludes that neither within nor without the world there is any vacuum..