If we take Dante and his contemporaries as evidence, we shall find that ancient philosophy first came into contact with Italian life in the form which offered the most marked contrast to Christianity, that is to say, Epicureanism. The writings of Epicurus were no longer preserved, and even at the close of the classical age a more or less one-sided conception had been formed of his philosophy. Nevertheless, that phase of Epicureanism which can be studied in Lucretius, and especially in Cicero, is quite sufficient to make men familiar with a godless universe. To what extent his teaching was actually understood, and whether the name of the problematic Greek sage was not rather a catchword for the multitude, it is hard to say. It is probable that the Dominican Inquisition used it against men who could not be reached by a more definite accusation. In the case of sceptics born before the time was ripe, whom it was yet hard to convict of positive heretical utterances, a moderate degree of luxurious living may have sufficed to provoke the charge. The word is used in this conventional sense by Giovanni Villani, when he explains the Florentine fires of 1115 and 1117 as a Divine judgement on heresies, among others, 'on the luxurious and gluttonous sect of Epicureans.' The same writer says of Manfred, 'His life was Epicurean, since he believed neither in God, nor in the Saints, but only in bodily pleasure.'

Dante speaks still more clearly in the ninth and tenth cantos of the 'Inferno.' That terrible fiery field covered with half-opened tombs, from which issued cries of hopeless agony, was peopled by the two great classes of those whom the Church had vanquished or expelled in the thirteenth century. The one were heretics who opposed the Church by deliberately spreading false doctrine; the other were Epicureans, and their sin against the Church lay in their general disposition, which was summed up in the belief that the soul dies with the body. The Church was well aware that this one doctrine, if it gained ground, must be more ruinous to her authority than all the teachings of the Manichaeans and Paterines, since it took away all reason for her interference in the affairs of men after death. That the means which she used in her struggles were precisely what had driven the most gifted natures to unbelief and despair was what she naturally would not herself admit.

Dante's loathing of Epicurus, or of what he took to be his doctrine, was certainly sincere. The poet of the life to come could not but detest the denier of immortality; and a world neither made nor ruled by God, no less than the vulgar objects of earthly life which the system appeared to countenance, could not but be intensely repugnant to a nature like his. But if we look closer, we find that certain doctrines of the ancients made even on him an impression which forced the biblical doctrine of the Divine government into the background unless, indeed, it was his own reflection, the influence of opinions then prevalent, or loathing for the injustice that seemed to rule this world, which made him give up the belief in a special Providence His God leaves all the details of the world's government to a deputy, Fortune, whose sole work it is to change and change again all earthly things, and who can disregard the wailings of men in unalterable beatitude. Nevertheless, Dante does not for a moment fail to insist on the moral responsibility of man; he believes in free will. The belief in the freedom of the will, in the popular sense of the words, has always prevailed in Western countries. At all times men have been held responsible for their actions, as though this freedom were a matter of course. The case is otherwise with the religious and philosophical doctrine, which labors under the difficulty of harmonizing the nature of the will with the laws of the universe at large. We have here to do with a question of more or less, which every moral estimate must take into account. Dante is not wholly free from those astrological superstitions which illumined the horizon of his time with deceptive light, but they do not hinder him from rising to a worthy conception of human nature. 'The stars,' he makes his Marco Lambert say ('Purgatorio,' xvi, 73), 'the stars give the first impulse to your actions, but a light is given you to know good and evil, and free will, which, if it endure the strain in its first battlings with the heavens, at length gains the whole victory, if it be well nurtured.'

Others might seek the necessity which annulled human freedom in another power than the stars, but the question was henceforth an open and inevitable one. So far as it was a question for the schools or the pursuit of isolated thinkers, its treatment belongs to the historian of philosophy. But inasmuch as it entered into the consciousness of a wider public, it is necessary for us to say a few words respecting it.

The fourteenth century was chiefly stimulated by the writings of Cicero, who, though in fact an eclectic, yet, by his habit of setting forth the opinions of different schools, without coming to a decision between them, exercised the influence of a skeptic. Next in importance came Seneca, and the few works of Aristotle which had been translated into Latin. The immediate fruit of these studies was the capacity to reflect on great subjects, if not in direct opposition to the authority of the Church, at all events independently of it.

In the course of the fifteenth century the works of antiquity were discovered and diffused with extraordinary rapidity. All the writings of the Greek philosophers which we ourselves possess were now, at least in the form of Latin translations, in everybody's hands. It is a curious fact that some of the most zealous apostles of this new culture were men of the strictest piety, or even ascetics. Fra Ambrogio Camaldolese, as a spiritual dignitary chiefly occupied with ecclesiastical affairs, and as a literary man with the translation of the Greek Fathers of the Church, could not repress the humanistic impulse, and at the request of Cosimo de' Medici, undertook to translate Diogenes Laertius into Latin. His contemporaries, Niccolo Niccoli, Giannozzo Manetti, Donato Acciaiuoli, and Pope Nicholas V, united to a many-sided humanism profound biblical scholarship and deep piety. In Vittorino da Feltre the same temper has been already noticed. The same Maffeo Vegio, who added a thirteenth book to the Aeneid, had an enthusiasm for the memory of St. Augustine and his mother, Monica, which cannot have been without a deeper influence upon him. The result of all these tendencies was that the Platonic Academy at Florence deliberately chose for its object the reconciliation of the spirit of antiquity with that of Christianity. It was a remarkable oasis in the humanism of the period.