Obviously, this is not a full endorsement.
Can we know God without grace?
The act of the intellect depends upon God in two ways: it has its form by which it acts from God
Preparing the human will
The preparation of the will cannot take place without habitual grace.
Man incurs a triple loss by sinning: stain, corruption of natural good, and debt of punishment (ST 1-2, q. 109, art7).
Christ restores us in the mind but not entirely in the flesh (Thomas is working upon a faulty spirit-flesh dichotomy).
Grace is located in the essence of the soul (q. 110).
Cooperating with God (q. 111)
There is a twofold act in us: interior act of the will, which is moved by God, and the exterior act which is moved by us.
Miracles: q. 111 art. 4. They happen today. Thomas is most certainly (and rightly) a continuationist.
Justification
Right order in man’s act (ST 1-2, q. 113 art.1)
Infusion of grace: the logic is that God must change something in our soul for us to be right with him, since sin is a disordering of the soul. “In the infusion of grace there is a certain transmutation of the soul” (ST 1-2, q. 113 art. 3).
Merit
It is the effect of cooperating grace (q. 114).
Merit exists on the grounds of God’s ordination (art 1).
Man merits everlasting life condignly (art. 3).
Outlaw Huguenot 