Lactantius,
Ante-Nicene Fathers Vol. VII, The Divine Institutes…
(1885)
“ Therefore, of all the philosophers, those who have embraced either knowledge or virtue as the chief good, have kept the way of truth, but have not arrived at perfection. For these are the two things which together make up that which is sought for. Knowledge causes us to know by what means and to what end we must attain; virtue causes us to attain to it. The one without the other is of no avail; for from knowledge arises virtue, and from virtue the chief good is produced. ”
