We are as much informed of a writer's genius by what he selects as by what he originates. We read the quotation with his eyes, and find a new and fervent sense; as a passage from one of the poets, well recited, borrows new interest from the rendering. As the journals say, "the italics are ours."
Ralph Waldo Emerson 1803-1882, 'Quotation and Originality' from Letters and Social Aims (1875)