"O, hark! what mean those yells and cries? His chain some furious madman breaks; He comes—I see his glaring eyes; Now, now, my dungeon grate he shakes. Help! Help! He's gone!—O fearful woe, Such screams to hear, such sights to see! My brain, my brain,—I know, I know I am not mad but soon shall be."
January 1, 1970
https://en.wikiquote.org/wiki/Insanity