[...] I send you herewith the contract which I have concluded with J. J. Weber concerning the publication of the Nibelung poem. I could not get better or other terms, in spite of the intervention of my brother-in-law Brockhaus, who took part personally in the negotiations. But at least the copyright of further editions is secured thereby. At present, a piece of poetic literature by me is neither a valuable nor a dutiable curio! [...]
Source: Letters of Richard Wagner, Vol. 2, selected and ed. Wilhelm Altmann, trans. M. M. Bozman (J. M. Dent & Sons, 1927), No. 547