Filsafat Plotinus - Ennead Kedua dari Enam Enneads: Sistem Surgawi, Bagian ke-2 dari 2 seri

We must distinguish between a center in reference to the two different natures, body and Soul. In body, center is a point of place; in Soul it is a source, the source of some other nature. That around which the object, Soul or material mass, revolves. While in the higher realm everything flows on its course. There is a lowest power of the Soul, a nearest to Earth, and this is interwoven throughout the entire universe: another phase possesses sensation, while yet another includes the Reason which is concerned with the objects of sensation.