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On the one hand there is the unstable, exposed to all sorts of change, distributed in place, not so much Being as Becoming: on the other, there is that which exists eternally, not divided, subject to no change of state, neither coming into being nor falling from it, set in no region or place or support, emerging from nowhere, entering into nothing, fast. within itself.

In dealing with that lower order we would reason from its own nature and the characteristics it exhibits; thus, on a plausible foundation, we achieve plausible results by a plausible system of deduction: similarly, in dealing with the Intellectual, the only way is to grasp the nature of the essence concerned and so lay the sure foundations of the argument, not forgetfully straying over into that other order but basing our treatment on what is essential to the Nature with which we deal.

In every entity the essential nature is the governing principle and, as we are told, a sound definition brings to light many even of the concomitants: where the essential nature is the entire being, we must be all the more careful to keep to that, to look to that, to refer all to that.

3.

If this principle is the Authentic Existent and holds unchanging identity, does not go forth from itself, is untouched by any process of becoming or, as we have said, by any situation in place, then it must be always self-gathered, never in separation, not partly here and partly there, not giving forth from itself: any such instability would set it in thing after thing or at least in something other than itself: then it would no longer be self-gathered; nor would it be immune, for anything within which it were lodged would affect it; immune, it is not in anything. If, then, not standing away from itself, not distributed by part, not taking the slightest change, it is to be in many things while remaining a self-concentrated entire, there is some way in which it has multipresence; it is at once self-enclosed and not so: the only way is to recognise that while this principle itself is not lodged in anything, all other things participate in it—all that are apt and in the measure of their aptitude.

Thus, we either cancel all that we have affirmed and the principles