Johann Wolfgang von Goethe:

from "Wilhelm Meister's Apprenticeship""

Book II., Chapter XIII.

Who never eat with tears his bread,
Who never through night's heavy hours
Sat weeping on his lonely bed,--
He knows you not, ye heavenly powers!

Through you the paths of life we gain,
Ye let poor mortals go astray,
And then abandon them to pain,--
E'en here the penalty we pay.