We shall not go into the details of medieval politics, the complicated wranglings among various cities and principalities, the warring factions in each, plus the partisans of papal dominion and those of the Holy Roman Empire. Suffice it here to point out that one of the greatest world poets was from the beginning to the end of his life a politician, and took a vigorous part in the practical affairs of his time, fighting his enemies hard, hating them implacably, and not hesitating to use his literary art to punish them in a future world. When Dante goes down into hell he encounters in the lowest pits of torment various Florentine politicians, who have betrayed and debauched his city. How he regards them may be judged by the case of Bocca degli Abbati, a gentleman who is found locked helpless up to his neck in ice; the poet grabs his hair and tears it out by the handful! The quality which Dante especially loathed was greed, “cupiditia.” He raged at the church of his time, because it had accepted the “fatal gift” from the Emperor Constantine--the temporal possessions which made the popes into worldly potentates, intriguers and heads of armies. The two popes of his own time Dante flung into hell, and portrayed heaven itself as reddening with anger at their deeds. St. Peter declares that each of them “has of my cemetery made a sewer of blood and filth.” This is plain muck-raking; and how undignified and unliterary it must have seemed to the cultured prelates of the fourteenth century! It seems that way to modern critics also. Albert Mordell has published a book entitled “Dante and Other Waning Classics,” in which he argues that the “Divine Comedy” is ugly, as well as out of date, with its elaborate symbolism derived from church legend, and from Greek and Latin mythology, combined and complicated by scholastic subtlety. Mr. Mordell is one of those who think that art ought not to preach; and certainly Dante does not shirk this issue--he tells us in plain words: “The kind of philosophy under which we proceed in the whole and in the part is moral philosophy or ethics; because the whole was undertaken not for speculation but for use.” What are the moral problems which occupied the soul of Dante, and have these problems any interest for us? There are two which I believe will always concern mankind. First, the problem of divine justice. How does it happen that the wicked flourish? How shall we explain their power to oppress the innocent? If God has power to prevent it, why does He not use that power? Dante traveled to the depths of hell and ascended through purgatory to heaven, seeking answers to these questions. Our only advantage over him is that we do not even think we can answer.