THE UNITY OF REASON IS CONSTITUTED BY THE CONTRARIES IT CONTAINS.

As reason proceeds from Intelligence and Life, which possesses both

fulness and unity, Reason does not possess the unity and fulness of

Intelligence and Life. Consequently, Reason does not communicate the

totality and universality of its essence to the beings to which it

imparts itself. It, therefore, opposes its parts to each other, and

creates them defective; whereby, Reason constitutes and begets war and

struggle. Thus Reason is the universal unity, because it could not be

the absolute unity. Though reason imply struggle, because it consists

of parts, it also implies unity and harmony. It resembles the reason of

a drama, whose unity contains many diversities. In a drama, however,

the harmony of the whole results from its component contraries being

co-ordinated in the unity of action, while, in universal Reason, it is

from unity that the struggle of contraries arises. That is why we may

well compare universal Reason to the harmony formed by contrary sounds,

and to examine why the reasons of the beings also contain contraries.

In a concert, these reasons produce low and high sounds, and, by

virtue of the harmony, that constitutes their essence, they make these

divers sounds contribute to unity, that is, to Harmony[70] itself,

the supreme Reason of which they are only parts.[71] In the same way

we must consider other oppositions in the universe, such as black and

white, heat and cold, winged or walking animals, and reasonable and

irrational beings. All these things are parts of the single universal

Organism. Now if the parts of the universal Organism were often in

mutual disagreement, the universal Organism, nevertheless, remains

in perfect accord with itself because it is universal, and it is

universal by the Reason that inheres in it. The unity of this Reason

must therefore be composed of opposite reasons, because their very

opposition somehow constitutes its essence. If the Reason (of the

world) were not multiple, it would no longer be universal, and would

not even exist any longer. Since it exists, Reason must, therefore,

contain within itself some difference; and the greatest difference is

opposition. Now if Reason contain a difference, and produce different

things, the difference that exists in these things is greater than that

which exists in Reason. Now difference carried to the highest degree is

opposition. Therefore, to be perfect, Reason must from its very essence

produce things not only different, but even opposed.

Plotinos: Complete Works, v. 4 In Chronological Order, Grouped in Four Periods · 第 55 / 382 题