I think that it is a part of growing up, learning to

I think that it is a part of growing up, learning to control our suffering. I think that when we grow up, and learn that happiness is rare, and passes quickly, we become disillusioned and hurt. And how much we suffer is a mark of how much we have been hurt by this realisation. Suffering, you see, is a kind of anger. We rage against the unfairness, the injustice of our sad and sorry lot.