" Sooner or later in life everyone discovers that perfect happiness is unrealizable, but there are few who pause to consider the antithesis: that perfect unhappiness is equally unattainable. The obstacles preventing the realization of both these extreme states are of the same nature: they derive from our human condition which is opposed to everything infinite. Our ever-insufficient knowledge of the future opposes it: and this is called, in the one instance, hope, and in the other, uncertainty of the following day. The certainty of death opposes it: for it places a limit on every joy, but also on every grief. The inevitable material cares oppose it: for as they poison every lasting happiness, they equally assiduously distract us from our misfortunes and make our consciousness of them intermittent and hence supportable.

Similar to the way we are led along in life by the endless pursuits of pleasures, we are led along, even saved by the endless revelation of pain. This in itself may not be a happy thought, but it is a reminder of how relative, always, are our perceptions of misery and joy. "

― Primo Levi