In one of his novels he introduces a quarrelsome grammarian of the Hebrew language, a verbal critic who takes the field in grammatical campaigns, and is accompanied by a marvelously beautiful woman. Immanuel enters into a hair-splitting disputation that he may have the opportunity of coquetting with the lovely lady. He suffers defeat in grammar, but makes a conquest in love. Immanuel's description of hell and paradise, in which he imitated his friend Dante, is full of fine satire. Whilst the Christian romantic poet shows gravity and elevation in his poetical creation, represents sinners and criminals, political opponents and enemies of Italy, cardinals and popes, as being tortured in hell, metes out, as it were, the severe sentences of judgment day; his Jewish friend, Immanuel, invents scenes in heaven and hell for the purpose of giving play to his humorous fancy. Dante wrote a divine, Immanuel a human, comedy. He introduces his pilgrimage to heaven and hell by relating that he once felt greatly oppressed by the burden of his sins, and experienced compunction; at this juncture his young friend Daniel, by whose untimely death he had lately been deeply affected, appeared to him, and offered to guide him through the dismal portals of hell and the elysian fields of the blessed. In the chambers of hell Immanuel observes all the wicked and godless of the Bible. Aristotle, too, is there, "because he taught the eternity of the world," and Plato, "because he asserted the reality of species" (Realism). Most of all he scourges his contemporaries in this poem. He inflicts the torment of the damned upon the deriders of science; upon a Talmudist who secretly led a most immoral life; upon men who committed intellectual thefts, and upon those who sought to usurp all the honors of the synagogue, the one to have his seat by the Ark of the Covenant, the other to read the prayers on the Day of Atonement. Quack doctors are also precipitated into hell, because they take advantage of the stupidity and credulity of the multitude, and bring trusting patients to a premature grave. His young, beatified guide goes with him through the gates of Paradise. How the departed spirits rejoice at the poet's approach! They call out, "Now is the time to laugh, for Immanuel has arrived." In the description of paradise and its inhabitants, Immanuel affects to treat his theme very seriously; but he titters softly within the very gates of heaven. Of course, he notices the holy men, the patriarchs, the pious kings and heroes of the Jewish past, the prophets and the great teachers, the poets, Jehuda Halevi and Charisi, the Jewish philosopher Maimuni. But next to King David, who fingers the harp and sings psalms, he observes the harlot Rahab who concealed the spies in Jericho, and Tamar who sat at the cross-roads waiting. Dante excludes the heathen world from paradise, because it did not acknowledge Christ, and had no share in the grace of salvation.