ST THOMAS AQUINAS (1174 – 1225)
“It was said [by Aristotle] that the human soul is, in a certain sense, all things, because it is created to know all things. In this way it is possible for the perfection of the whole universe to have its existence in one single being. Hence, according to philosophers, the ultimate perfection to which the soul can attain is that the whole order of the universe and its causes are reflected in it. This also, they say, is the final goal of the human being, which in our opinion will be attained in the vision of God. ‘What is there that they will not see, who will see the One who sees all things?’ (Gregory the Great).”