Moreover, the universe as a whole is infinite, for whatever is limited has an outermost edge to limit it, and such an edge is defined by something beyond. Since the universe has no edge, it has no limit; and since it lacks a limit, it is infinite and unbounded. Moreover, the universe is infinite both in the number of its atoms and in the extent of its void.
Epicurus (1964). “Letters: Principles Doctrines, and Vatican Sayings Translated, with an Introd. and Notes, by Russel M. Geor. Indianapolis Merrill”