The Six Books of Proclus on the Theology of Plato, Volume 2

For there are many infinites which have the infinite not on account of the always, such for instance, as the infinity according to magnitude, the infinity according to multitude, and the infinity of matter. And whatever else there may be of the like kind, which is infinite, either because it cannot be passed over, or through the indefiniteness of its essence. That perpetuity however is a certain infinity[248] is evident. For that which never fails is infinite. But this is that which always has its hypostasis inexhaustible. Infinity therefore, is prior to perpetuity. For that which gives subsistence to a greater number of effects, and is more total, is more causal. Hence, the first infinity is beyond eternity, and infinity itself is prior to eternity.