A Latin professor (Richard McClintock) found that the words Lorem ipsum was part of a passage from "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) written in 45 BC by Marcus Tullius Cicero, a treatise on the theory of ethics written in 45 BC. The first line of lorem ipsum, "Lorem ipsum dolor sit amet...", can be read out of a line from section 1.10.32 of that book.