Translated by F. M. Padelford.
Into the life eternal the Holy Scriptures lead us, which teach us through divine words. But so long as our immaturity forbids our understanding their deep thought, we exercise our spiritual perceptions upon profane writings, which are not altogether different, and in which we perceive the truth as it were in shadows and in mirrors. Thus we imitate those who perform the exercises of military practice, for they acquire skill in gymnastics and in dancing, and then in battle reap the reward of their training. We must needs believe that the greatest of all battles lies before us, in preparation for which we must do and suffer all things to gain power. Consequently we must be conversant with poets, with historians, with orators, indeed with all men who may further our soul's salvation. Just as dyers prepare the cloth before they apply the dye, be it purple or any other color, so indeed must we also, if we would preserve indelible the idea of the true virtue, become first initiated in the pagan lore, then at length give special heed to the sacred and divine teachings, even as we first accustom ourselves to the sun's reflection in the water, and then become able to turn our eyes upon the very sun itself.
III. If, then, there is any affinity between the two literatures, a knowledge of them should be useful to us in our search for truth; if not, the comparison, by emphasizing the contrast, will be of no small service in strengthening our regard for the better one. With what now may we compare these two kinds of education to obtain a simile? Just as it is the chief mission of the tree to bear its fruit in its season, though at the same time it puts forth for ornament the leaves which quiver on its boughs, even so the real fruit of the soul is truth, yet it is not without advantage for it to embrace the pagan wisdom, as also leaves offer shelter to the fruit, and an appearance not untimely. That Moses, whose name is a synonym for wisdom, severely trained his mind in the learning of the Egyptians, and thus became able to appreciate their deity. Similarly, in later days, the wise Daniel is said to have studied the lore of the Chaldaeans while in Babylon, and after that to have taken up the sacred teachings.
Reference address : https://www.elpenor.org/basil/ancient-literature.asp?pg=3