"But, it may be objected, is not this Christian art a myth? Can one even conceive of it? Is not art pagan by birth and tied to sin -- just as man is a sinner by birth? But grace heals wounded nature. Do not say that a Christian art is impossible. Say rather that it is difficult, doubly difficult -- fourfold difficult, because it is difficult to be an artist and very difficult to be a Christian, and because the total difficulty is not simply the sum but the product of these two difficulties multiplied by one another: for it is a question of harmonizing two absolutes. Say that the difficulty becomes tremendous when the entire age lives far from Christ, for the artist is greatly dependent upon the spirit of his time. But has courage ever been lacking on earth?"