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.

I answer that, Even, as in the blessed in heaven there will be most perfect charity, so in the damned there will be the most perfect hate.

It seems that God does not exist; because if one of two contraries be infinite, the other would be altogether destroyed. But the word "God" means that He is infinite goodness. If, therefore, God existed, there would be no evil discoverable; but there is evil in the world. Therefore God does not exist.

Perfection of moral virtue does not wholly take away the passions, but regulates them.

A scrap of knowledge about sublime things is worth more than any amount about trivialities.

Because we cannot know what God is, but only what He is not, we cannot consider how He is but only how He is not.

Arrive at knowledge over small streamlets, and do not plunge immediately into the ocean, since progress must go from the easier to the more difficult.