"He who is true God is also true man; there is no falsity in this union, wherein the lowliness of man and the greatness of the divinity are mutually united. Just as God is not changed by His show of mercy, so the man is not swallowed up in majesty. Each aspect performs its own acts in co-operation with the other; that is, the Word doing what is proper to the Word, the flesh pursuing what pertains to the flesh. The first of these is ablaze with the miraculous, the other is overpowered with injuries. And just as the Word does not give up any of His equality in the Father's glory, so also the flesh does not abandon the nature of our species. He is one and the same, truly Son of God and truly Son of man. He is God because of the fact that 'in the beginning was the Word, and the Word was with God, and the Word was God'; and man through the fact that 'the Word was made flesh, and dwelt among us.'"
-St. Leo the Great.