I am suspicious of the notion of unrequited suffering, in particular, of its inescapable implication that suffering can be “requited”. Suffering is not a debit entry in some ledger, something that can be offset by an appropriate credit on another page. Suffering is intrinsic disvalue. Positive consequences may flow from it, but it cannot thereby be “made good”.
- Jay F. Rosenberg

Read a discussion of this quote: Jay F. Rosenberg on Suffering