但是，我们不应该有选择性地采纳符合衰败和进步的宏大叙事的事实和故事，而应该全方位地比较人类经验，研究世界是否真的在变好或变坏。
But, rather than picking facts and stories to fit some grand narrative of decline or progress, we should try to compare across all areas of human existence to see if the world really is doing better or worse.