Guthrie: Tratado 2,17 (IV,7,17) — Não há uma maneira concebível na qual a alma possa perecer

THERE IS NO CONCEIVABLE WAY IN WHICH SOUL COULD PERISH.

12. (17). (The Stoics), indeed, claim that every soul is perishable. In this case, everything should long since have been destroyed. Others might say that our soul were mortal, while the universal Soul were immortal. On them, however, is the burden of proof of a difference between the individual and universal souls. Both of them, indeed, are a principle of movement; both live by themselves; both grasp the same object by the same faculty, either by thinking the things contained in heaven, or by considering the nature (“being”) of each being, ascending unto the first principle. Since our soul thinks absolute essences either by the notions she finds within herself, or by reminiscence, she evidently is prior to the body. Possessing knowledge of eternal entities, she herself must be eternal. All that dissolves, existing only by its compositeness, can naturally dissolve in the same manner that it became composite. But the soul is a single, simple actualization, whose essence is life; not in this manner therefore can the soul perish. Neither could the soul perish by division into a number of parts; for, as we have shown, the soul is neither a mass nor a quantity. As little could the soul perish by alteration; for when alteration destroys anything, it may remove its form, but leaves its matter; alteration, therefore, is a characteristic of something composite. Consequently as the soul cannot perish in any of these ways, she is imperishable.

GUTHRIE, K. S. Plotinus: Complete Works: In Chronological Order, Grouped in Four Periods. [single Volume, Unabridged]. [s.l.] CreateSpace Independent Publishing Platform, 2017.