When Cotta has concluded his refutation of Velleius, with which the first book closes, Balbus is next requested to give the sentiments of the Stoics, on the subject of the gods, to which, making a slight excuse, he consents. His first argument for their existence, after shortly alluding to the magnificence of the world, and the prevalence of the doctrine, is “the frequent appearance of the gods themselves. In the war with the Latins,” he continues, “when A. Posthumius, the Dictator, attacked Octavius Mamilius, the Tusculan, at Regillus, Castor and Pollux were seen fighting in our army on horseback, and since that time the same offspring of Tyndarus gave notice of the defeat of Perseus; for P. Vatienus, grandfather of the present youth of that name, coming in the night to Rome, from his government of Reate, two young men on white horses appeared to him, and told him King Perseus was that day taken prisoner. This news he carried to the Senate, who immediately threw him into prison, for speaking inconsiderately on a state affair; but when it was confirmed by letters from Paullus, he was recompensed by the Senate with land and exemption. The voices of the Fauns have been often heard, and deities have appeared in forms so visible, that he who doubts must be hardened in stupidity or impiety.” Balbus, after farther arguing for the existence of the gods, from events consequent on auguries and auspices, proceeds to what is more peculiarly the doctrine of the Stoics. He remarks,—“that Cleanthes, one of the most distinguished philosophers of that sect, imputes the idea of the gods implanted in the minds of men, to four causes—The first is, what I just now mentioned, a pre-knowledge of future things: The second is, the great advantages we enjoy from the temperature of the air, the fertility of the earth, and the abundance of various kinds of benefits: The third is, the terror with which the mind is affected by thunder, tempests, snow, hail, devastation, pestilence, earthquakes, often attended with hideous noises, showers of stones, and rain like drops of blood. His fourth cause,” continues Balbus, “and that the strongest, is drawn from the regularity of the motion, and revolution of the heavens, the variety, and beauty, and order of the sun, moon, and stars; the appearance only of which is sufficient to convince us they are not the effects of chance; as when we enter into a house, a school, or court, and observe the exact order, discipline, and method therein, we cannot suppose they are so regulated without a cause, but must conclude there is some one who commands, and to whom obedience is paid; so we have much greater reason to think that such wonderful motions, revolutions, and order of those many and great bodies, no part of which is impaired by the vast infinity of age, are governed by some intelligent being.”