Book VI · 9

In conformity to the nature of the universe every single thing is accomplished; for certainly it is not in conformity to any other nature that each thing is accomplished, either a nature which externally comprehends this, or a nature which is comprehended within this nature, or a nature external and independent of this.

In accordance with the Nature of the Universe is accomplished each several thing. For surely this cannot be in accordance with any other nature, that either envelops it from without, or is enveloped by it within, or exists in external detachment outside it.