"Now Sauron's lust and pride increased, until he knew no bounds, and he determined to make himself master of all things in Middle-earth, and to destroy the Elves, and to compass if he might, the downfall of Númenor. He brooked no freedom nor any rivalry, and he named himself Lord of the Earth. A mask he still could wear so that if he wished he might deceive the eyes of Men, seeming to them wise and fair. But he ruled rather by force and fear, if they might avail; and those who perceived his shadow spreading over the world called him the Dark Lord and named him the Enemy; and he gathered under his government all the evil things of the days of Morgoth that remained on earth or beneath it, and the Orcs were at his command and multiplied like flies."
— The Silmarillion