Percy Bysshe Shelley - To Mary Shelley

THE world is dreary,
And I'm weary
Of wandering on without thee, Mary;
A joy was erewhile
In thy voice and thy smile,
And 'tis gone, when I should be gone too, Mary.

Percy Bysshe Shelley

http://www.poemhunter.com/poem/to-mary-shelley/