Michel de Montaigne,
The Essays of Montaigne — Chapter XIII. Of Experience…
(1877)
“ Oh, how much does health seem the more pleasant to me, after a sickness so near and so contiguous, that I can distinguish them in the presence of one another, in their greatest show; when they appear in emulation, as if to make head against and dispute it with one another! As the Stoics say that vices are profitably introduced to give value to and to set off virtue, we can, with better reason and less temerity of conjecture, say that nature has given us pain for the honour and service of pleasure and indolence. ”
