Monologium, on the Being of God41 Chapter XLI. He most truly begets, and it is most truly begotten.

St Anselm († 1109) · Monologion · 1075-1076

Chapter XLI. He most truly begets, and it is most truly begotten.

But it will be impossible to establish this proposition, unless, in equal degree, he most truly begets, and it is most truly begotten. As the former supposition is evidently true, so the latter is necessarily most certain. Hence, it belongs to the supreme Spirit most truly to beget, and to his Word to be most truly begotten.

At hoc constare non poterit, nisi pariter ille verissime gignat; et istud verissime gignatur. Sicut igitur illud est perspicuum, ita hoc esse certissimum necesse est. Quare summi Spiritus est verissime gignere, et Verbi ejus verissime gigni.

Sidney Norton Deane (1878–1943), Chicago: Open Court, 1903. Digital text: English Wikisource transcription of the 1903 edition (each chapter checked against the OCR of the Internet Archive scan stanselmeproslog00anseuoft). Original text: Corpus Corporum (University of Zurich) TEI of the Patrologia Latina, via the CatholicCorpus mirror. Public domain in the US and Canada: published 1903; translator died 1943. Latin: Migne, PL 158 (1853), public domain.