Odin, thou whirlwind, what a threat is this
Thou threatenest what transcends thy might, even thine,
For of all powers the mightiest far art thou,
Lord over men on earth, and Gods in Heaven;
Yet even from thee thyself hath been withheld
One thing — to undo what thou thyself hast ruled.
Forty Thousand Quotations: Prose and Poetical (1917)