The iron tongue of midnight hath told twelve; lovers, to bed; 'tis almost fairy time. I fear we shall outstep the coming morn as much as we this night overwatch'd. — William Shakespeare, A Midsummer Night’s Dream , Act V, Scene I “ . . . the sun really is darkened and the moon really does not give its light. The time has almost all run out. The iron tongue of midnight is already swinging, and when it will clash and sound, the angular velocity of psychic accumulation is seen t