我们必须走入那场斗争的中心。我刚才说过，贪得无厌的乐观的求知欲与悲剧艺术的自我陶醉之间的斗争，是在现代世界的最高境界里进行的。
we must enter into the midst of those struggles , which , as I have just said , are being waged in the highest spheres of our contemporary world between insatiable optimistic knowledge and the tragic need of art .
乐观的悲剧