Et in Arcadia ego.

For what else can I do, a lame old man, than sing hymns to God? If then I was a nightingale, I would do the part of a nightingale: if I were a swan, I would do like a swan. But now I am a rational creature, and I ought to praise God: this is my work; I do it, nor will I desert this post, so long as I am allowed to keep it; and I exhort you to join in this same song.

--Epictetus, Discourses, ch. xvi.