Note 1 — CANTO I.

These stars are the symbols of the four Cardinal Virtues,—Prudence, Temperance, Fortitude, and Justice,—the virtues of active life, sufficient to guide men in the right path, but not to bring them to Paradise. By the first people arc probably meant Adam and Eve, who from the terrestrial Paradise, on the summit of the Mount of Purgatory, had seen these stars, visible only from the Southern hemisphere. According to the geography of the time Asia and Africa lay north of the equator, so that even to their inhabitants these stars were invisible. Possibly the meaning is that these stars, symbolizing the cardinal virtues, had been visible only in the golden age.