[Dante, doubtful of his own powers, is discouraged. Virgil cheers him by telling him that he has been sent to his aid by a blessed Spirit from Heaven. Dante casts off fear, and the poets proceed.] The day was going, and the dusky air was taking the living things that are on earth from their fatigues, and I alone was preparing to sustain the war alike of the road, and of the woe which the mind that errs not shall retrace. O Muses, O lofty genius, now assist me! O mind that didst inscribe that which I saw, here shall thy nobility appear! I began:-- "Poet, that guidest me, consider my virtue, if it be sufficient, ere to the deep pass thou trustest me. Thou sayest that the parent of Silvius while still corruptible went to the immortal world and was there in the body. Wherefore if the Adversary of every ill was then courteous, thinking on the high effect that should proceed from him, and on the Who and the What,[11] it seemeth not unmeet to a man of understanding; for in the empyreal heaven he had been chosen for father of revered Rome and of her empire; both which (to say truth indeed) were ordained for the holy place where the successor of the greater Peter has his seat. Through this going, whereof thou givest him vaunt, he learned things which were the cause of his victory and of the papal mantle! Afterward the Chosen Vessel went thither to bring thence comfort to that faith which is the beginning of the way of salvation. But I, why go I thither? or who concedes it? I am not AEneas, I am not Paul; me worthy of this, neither I nor others think; wherefore if I give myself up to go, I fear lest the going may be mad. Thou art wise, thou understandest better than I speak." And as is he who unwills what he willed, and because of new thoughts changes his design, so that he quite withdraws from beginning, such I became on that dark hillside; wherefore in my thought I abandoned the enterprise which had been so hasty in its beginning.