...I became insane, with long intervals of horrible sanity...

Gold-Seven

  • "And it is told of Maglor that he could not endure the pain with which the Silmaril tormented him; and he cast it at last into the Sea, and thereafter he wandered ever upon the shores, singing in pain and regret beside the waves. For Maglor was mighty among the singers of old, named only after Daeron of Doriath; but he came never back among the people of the Elves."
  • "But the jewel burned the hand of Maedhros in pain unbearable; and he perceived that it was as Eönwë had said, and that his right thereto had become void, and that the oath was vain. And being in anguish and despair he cast himself into a gaping chasm filled with fire, and so ended; and the Silmaril that he bore was taken into the bosom of the Earth."

(The Silmarillion, chapter 24, Of the Voyage of Eärendil and the War of Wrath, by J. R. R. Tolkien)