en as
He sometimes brings about miraculously what nature can do.

Reply Obj. 1: Every truth by whomsoever spoken is from the Holy Ghost
as bestowing the natural light, and moving us to understand and speak
the truth, but not as dwelling in us by sanctifying grace, or as
bestowing any habitual gift superadded to nature. For this only takes
place with regard to certain truths that are known and spoken, and
especially in regard to such as pertain to faith, of which the
Apostle speaks.

Reply Obj. 2: The material sun sheds its light outside us; but the
intelligible Sun, Who is God, shines within us. Hence the natural
light bestowed upon the soul is God's enlightenment, whereby we are
enlightened to see what pertains to natural knowledge; and for this
there is required no further knowledge, but only for such things as
surpass natural knowledge.

Reply Obj. 3: We always need God's help for every thought, inasmuch
as He moves the understanding to act; for actually to understand
anything is to think, as is clear from Augustine (De Trin. xiv, 7).
________________________

SECOND ARTICLE [I-II, Q. 109, Art. 2]

Whether Man Can Wish or Do Any Good Without Grace?

Objection 1: It would seem that man can wish and do good without
grace. For that is in man's power, whereof he is master. Now man is
master of his acts, and especially of his willing, as stated above
(Q. 1, A. 1; Q. 13, A. 6). Hence man, of himself, can wish and do
good without the help of grace.

Obj. 2: Further, man has more power over what is according to his
nature than over what is beyond his nature. Now sin is against his
nature, as Damascene says (De Fide Orth. ii, 30); whereas deeds of
virtue are according to his nature, as stated above (Q. 71, A. 1).
Therefore since man can sin of himself he can wish and do good.

Obj. 3: Further, the understanding's good is truth, as the
Philosopher says (Ethic. vi, 2). Now the intellect can of itself know
truth, even as every other thing can work its own operation of
itself. Therefore, much more can man, of himself, do and wish good.

_On the contrary,_ The Apostle says (Rom. 9:16): "It is not of him
that willeth," namely, to will, "nor of him that runneth," namely to
run, "but of God that showeth mercy." And Augustine says (De Corrept.
et Gratia ii) that "without grace men do nothing good when they
either think or wish or love or act."

_I answer that,_ Man's nature may be looked at in two ways: first, in
its int