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It is then an integral portion of the Faith fixed by Ecumenical Council, a portion of it which you hold as well as I, that the Blessed Virgin is Theotocos, Deipara, or Mother of God; and this word, when thus used, carries with it no admixture of rhetoric, no taint of extravagant affection,—it has nothing else but a well-weighed, grave, dogmatic sense, which corresponds and is adequate to its sound. It intends to express that God is her Son, as truly as any one of us is the son of his own mother.
— JOHN HENRY NEWMAN