主体结构是Now there is in American a curious combination of pride （in having risen to a position where it is no longer necessary to depend on manual labor for a living） and genuine delight （in what one is able to accomplish with one's own hand）.
delight in因……而快乐.
现在美国人有一种奇怪/古怪的心理,一方面他们因进步到了一个不再单纯依赖劳力谋生的层面而感到自豪,另一方面又因能够亲自用双手取得成就而有种真实的兴奋感.