In 1853, Jacob Burckhardt published The Age of Constantine the Great, in which he wrote:
Anyone who has encountered classical antiquity, if only in its twilight, feels that with beauty and freedom there departed also the genuine antique life, the better part of the national genius, and that the rhetorizing orthodoxy which was left to the Greek world can only be regarded as a lifeless precipitate of a once wonderful totality of being.In that book Burckhardt openly displayed his sympathy for ancient Paganism, and his preference for it over Christianity. He even went so far as to praise the persecutor Diocletian, while portraying Constantine in a way that continues to offend Christians to this day.
But just as Burckhardt deplored the eclipse of classical Paganism with the rise of Christianity in the 4th century in his biography of Constantine, in his next major work, The Civilization of the Renaissance, he celebrated the revival of Paganism at the expense of Christianity a thousand years later. The following excerpt is taken from "Religion and the Spirit of the Renaissance", which is Chapter 3 of Part VI of that book:
These modern men, the representatives of the culture of [Renaissance] Italy, were born with the same religious instincts as other mediaeval Europeans. But their powerful individuality made them in religion, as in other matters, altogether subjective, and the intense charm which the discovery of the inner and outer universe exercised upon them rendered them markedly worldly. In the rest of Europe religion remained, till a much later period. something given from without, and in practical life egotism and sensuality alternated with devotion and repentance. The latter had no spiritual competitors) as in Italy, or only to a far smaller extent.
Further, the close and frequent relations of Italy with Byzantium and the Mohammedan peoples had produced a dispassionate tolerance which weakened the ethnographical conception of a privileged Christendom. And when classical antiquity with its men and institutions became an ideal of life, as well as the greatest of historical memories, ancient speculation and skepticism obtained in many cases a complete mastery over the minds of Italians. Since, again, the Italians were the first modern people of Europe who gave themselves boldly to speculations on freedom and necessity, and since they did so under violent and lawless political circumstances, in which evil seemed often to win a splendid and lasting victory, their belief in God began to waver, and their view of the government of the world became fatalistic. And when their passionate natures refused to rest in the sense of uncertainty, they made a shift to help themselves out with ancient, Oriental, or medieval superstition. They took to astrology and magic.
Finally, these intellectual giants, these representatives of the Renaissance, show, in respect to religion, a quality which is common in youthful natures. Distinguishing keenly between good and evil, they yet are conscious of no sin. Every disturbance of their inward harmony they feel themselves able to make good out of the plastic resources of their own nature, and therefore they feel no repentance. The need of salvation thus becomes felt more and more dimly, while the ambitions and the intellectual activity of the present either shut out altogether every thought of a world to come, or else caused it to assume a poetic instead of a dogmatic form . . . .
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.This humanism was in fact Pagan, and became more and more so as its sphere widened in the fifteenth century. Its representatives, whom we have already described as the advance guard of an unbridled individualism, display as a rule such a character that even their religion, which is sometimes professed very definitely, becomes a matter of indifference to us. They easily got the name of atheists, if they showed themselves indifferent to religion and spoke freely against the Church; but not one of them ever professed, or dared to profess, a formal, philosophical atheism. If they sought for any leading principle, it must have been a kind of superficial rationalism--a careless inference from the many and contradictory opinions of antiquity with which they busied themselves, and from the discredit into which the Church and her doctrines had fallen.