Most successes are unhappy. That's why they are successes - they have to reassure themselves about themselves by achieving something that the world will notice.
Now this, monks, is the noble truth of suffering: birth is suffering, aging is suffering, illness is suffering, death is suffering; union with what is displeasing is suffering; seperation from what is pleasing is suffering... in brief, the five aggregates subject to clinging are suffering.
And to those nations like ours that enjoy relative plenty, we say we can no longer afford indifference to the suffering outside our borders; nor can we consume the world's resources without regard to effect. For the world has changed, and we must change with it.
I claim that in losing the spinning wheel we lost our left lung. We are, therefore, suffering from galloping consumption. The restoration of the wheel arrests the progress of the fell disease.
Each one of us reaps what we ourselves have sown. These miseries under which we suffer, these bondages under which we struggle, have been caused by ourselves, and none else in the universe is to blame. God is the least to blame for it.
I think the person who has had more experience of hardships can stand more firmly in the face of problems than the person who has never experienced suffering. From this angle then, some suffering can be a good lesson for life.