Harold S. Kushner said this quote
“ We may not ever understand why we suffer or be able to control the forces that cause our suffering, but we can have a lot to say about what suffering does to us, and what sort of people we become because of it. Pain makes some people bitter and envious. It makes others sensitive and compassionate. It is the result, not the cause, of pain that makes some experiences of pain meaningful and others empty and destructive. ”