Thy duty do? rejoined the voice,
Ah, do it, do it, and rejoice;
But shalt thou then, when all is done,
Enjoy a love, embrace a beauty
Like these, that may be seen and won
In life, whose course will then be run;
Or wilt thou be where there is none?
I know not, I will do my duty.

The Questioning Spirit, st. 2 (1847).