普瓦捷的希拉律 TRIN. 10.7
When He emptied himself of the form of God and took the form of a servant, the weakness of the assumed humanity did not weaken the divine nature, but that divine power was imparted to humanity without the virtue of divinity being lost in the human form. For when God was born to be man the purpose was not that the Godhead should be lost, but that, the Godhead remaining, man should be born to be god.
（Trin. 10.7, CCSL 62A.464.511, NPNF modified）