True speech: person begets person in unity of essence
Yet this secret is not placed in speculation alone, as genera and species are conceived in our intellects operation, but even when our intellects operation ceases, there is a true multiplication of hypostases, and a true distinction of them, without any confusion or separation among themselves.
Therefore to reduce the mode of this generation to the laws of human nativity or of any created thing is inept, impious, even sacrilegious. Therefore those who love to speak cautiously and circumspectly avoid certain of the ancients kyriologies, such as: the divine essence begets or is begotten; essence begets a person; God from His essence begets God.
But truly and properly it is said that the Father has begotten the Son, person a person, hypostasis a hypostasis, not from essence but in the unity of essence, which the Father gave wholly to the Son, not by alienation but by communication. CHAPTER TWENTY-THREE, On the SON, follows.
Latin
Neque tamen hoc arcanum in sola speculatione positum est, sicuti in intellectus nostri operatione genera et species concipiuntur, sed cessante etiam intellectus nostri operatione, vera est hypostaseon multiplicatio, veraque earum distinctio, citra ullam inter se confusionem aut separationem. Hujus igitur generationis modum ad humanae nativitatis aut ullius creatae rei leges revocare, ineptum, impium, imo sacrilegum est. Quapropter, qui caute et circumspecte loqui amant, quasdam veterum kyriologias vitant, quales sunt: divinam essentiam gignere vel gigni; essentiam gignere personam; Deum ex sua essentia gignere Deum. Vere autem et proprie dicitur, Patrem genuisse Filium, personam personam, hypostasin hypostasin, non ex essentia, sed in unitate essentiae, quam Pater Filio totam dedit, non alienatione, sed communicatione. CAPUT VIGESIMUM TERTIUM, De FILIO, sequitur.