Because,while both are beautiful,life as reflected in works of literature and art can and ought to be on a higher plane,more intense,more concentrated,more typical,nearer the ideal,and therefore more universal than actual everyday life.

• 因为虽然两者都是美，但是文艺作品中反映出来的生活却可以而且应该比普通的实际生活更高，更强烈，更有集中性，更典型，更理想，因此就更带普遍性。