From Words of the Dead Chief, published 1892, edited by Jennie Wyse-Power.

[Mr. Parnell’s last letter to his mother, in answer to her complaints of how some of the American papers had written of his treatment of her:]

I am weary, dear mother, of these troubles, weary unto death; but it is all in a good cause. With health, and the assistance of my friends, I am confident of the result. The statements my enemies have so often made, regarding my relations with you, are on a par with the endless calumnies they shoot upon me from behind every bush. Let them pass. They will die of their own venom. It would, indeed, be dignifying them to notice their existence.