Ralph Waldo Emerson 爱默生(Ralph Waldo Emerson)著 Memoir of Ralph Waldo Emerson (美)爱默生(Ralph Waldo Emerson)著 Ralph Waldo Emerson: Lecture [美]爱默生(Ralph Waldo Emerson)著 [(美)爱默生(Ralph Waldo Emerson)著 (美)爱默生( Ralph Waldo Emerson)著 Essays by Ralph Waldo Emerson [美]爱默生(Ralph Waldo Emersom)著