In one of the frescoes of the Vatican, Raphael has commemorated the tradition of the Catholic religion. Against a space of tranquil sky, broken in upon by the beatific vision, are ranged the great personages of Christian history, with the Sacrament in the midst. Another fresco of Raphael in the same apartment presents a very different company, Dante alone appearing in both. Surrounded by the muses of Greek mythology, under a thicket of laurel, sits Apollo, with the sources of Castalia at his feet. On either side are grouped those on whom the spirit of Apollo descended, the classical and Renaissance poets, to whom the waters of Castalia [198] come down, a river making glad this other "city of God." In this fresco it is the classical tradition, the orthodoxy of taste, that Raphael commemorates. Winckelmann's intellectual history authenticates the claims of this tradition in human culture. In the countries where that tradition arose, where it still lurked about its own artistic relics, and changes of language had not broken its continuity, national pride might sometimes light up anew an enthusiasm for it. Aliens might imitate that enthusiasm, and classicism become from time to time an intellectual fashion. But Winckelmann was not further removed by language, than by local aspects and associations, from those vestiges of the classical spirit; and he lived at a time when, in Germany, classical studies were out of favour. Yet, remote in time and place, he feels after the Hellenic world, divines those channels of ancient art, in which its life still circulates, and, like Scyles, the half-barbarous yet Hellenising king, in the beautiful story of Herodotus, is irresistibly attracted by it. This testimony to the authority of the Hellenic tradition, its fitness to satisfy some vital requirement of the intellect, which Winckelmann contributes as a solitary man of genius, is offered also by the general history of the mind. The spiritual forces of the past, which have prompted and informed the culture of a succeeding age, live, indeed, within that culture, but with an absorbed, underground life. The Hellenic element alone [199] has not been so absorbed, or content with this underground life; from time to time it has started to the surface; culture has been drawn back to its sources to be clarified and corrected. Hellenism is not merely an absorbed element in our intellectual life; it is a conscious tradition in it.