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.
Thomas AquinasThe Cross to me is certain salvation. The Cross is that which I ever adore. The Cross of the Lord is with me. The Cross is my refuge.
Thomas AquinasFriendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.
Thomas AquinasIt is requisite for the relaxation of the mind that we make use, from time to time, of playful deeds and jokes.
Thomas AquinasGood and evil are essential differences of the act of the will. For good and evil pertain essentially to the will; just as truth and falsehood pertain to the reason, the act of which is distinguished essentially by the difference of truth and falsehood (according as we say that an opinion is true or false.) Consequently, good and evil volition are acts differing in species.
Thomas Aquinas