Proportion

But AG is equal to C and DK to F;

I say that, as A is to B, so is E to F.

For let AG be made equal to E, and CH equal to F.

This is best accomplished by what in Greek is called analogia, and in Latin (for one must venture, since these terms are now for the first time coined by us) may be called comparison or proportion.

For when, of three things — whether numbers, or figures, or any kinds whatsoever — it comes about that the middle is so related to the first in proportion as the last is to it, and conversely, that as the last stands to the middle, so the middle stands to the first, then that which is the middle becomes at once first and last, while the last and the first become middle;

But since solidity was sought for the universe, and solid things are never joined by one middle term but always by two, it so came about that the god placed water and air between fire and earth, and set them in due relation to one another and joined them by proportion, so that, as fire stands to air, so air should render itself to water, and as air stands to water, so water should render itself to earth.

But the gnostic perfection of the man under the law is the taking on of the gospel, that the man under the law may become perfect;

You will find, then, if you wish, from their deeds and writings, the knowledge, the life, the preaching, the righteousness, the purity, the prophecy.

Blessed, then, would he be from this point, and rightly proclaimed perfect, that the exceeding greatness of the power may be of God and not from us, as the apostle says;

for measure and proportion are everywhere identified with beauty and virtue.

Second, then, comes proportion, beauty, perfection, sufficiency, and all that belongs to that class.