If the immediate and direct purpose of our life is not suffering then our existence is the most ill-adapted to its purpose in the world: for it is absurd to suppose that the endless affliction of which the world is everywhere full, and which arises out of the need and distress pertaining essentially to life, should be purposeless and purely accidental. Each individual misfortune, to be sure, seems an exceptional occurrence; but misfortune in general is the rule.
2
Just as a stream flows smoothly on as long as it encounters no obstruction, so the nature of man and animal is such that we never really notice or become conscious of what is agreeable to our will; if we are to notice something, our will has to have been thwarted, has to have experienced a shock of some kind. On the other hand, all that opposes, frustrates and resists our will, that is to say all that is unpleasant and painful, impresses itself upon us instantly, directly and with great clarity.