Grace does not destroy nature, it perfects it.

Far graver is it to corrupt the faith that is the life of the soul than to counterfeit the money that sustains temporal life.

He that obstinately denieth the truth before men upon earth, wilfully refuseth his soul's health in heaven.

The Study of philosophy is not that we may know what men have thought, but what the truth of things is.

Unbelief is the greatest of sins.

It would seem that the ingratitude, whereby a subsequent sin causes the return of sins previously forgiven, is a special sin. For, the giving of thanks belongs to counter passion, which is a necessary condition of justice. But justice is a special virtue. Therefore this ingratitude is a special sin. Thanksgiving is a special virtue. But ingratitude is opposed to thanksgiving. Therefore ingratitude is a special sin.

Give us, O Lord, a steadfast heart, which no unworthy affection may drag downwards; give us an unconquered heart, which no tribulation can wear out; give us an upright heart, which no unworthy purpose may tempt aside. Bestow upon us also, O Lord our God, understanding to know you, diligence to seek you, wisdom to find you, and a faithfulness that may finally embrace you; through Jesus Christ our Lord.