Complex sentence: By way of contrast, Origen taught that, though the Son was subordinate and less than the Father in power, substance, and rank, the relation of the Son to the Father had no beginning, and that the Son was "eternally generated".
Split into simpler sentences: By way of contrast, Origen taught that the Son was subject to the Father, and some of Origen's writings seem to imply that the Son is subordinate and less than the Father in some ways. However, Origin believed the relation of the Son to the Father had no beginning, and that the Son was "eternally generated".