“We have given the answer already by pointing to the three sources from which our suffering comes: the superior power of nature, the feebleness of our own bodies and the inadequacy of the regulations which adjust the mutual relationships of human beings in the family, the state and society. In regard to the first two sources, our judgment cannot hesitate long. It forces us to acknowledge those sources of suffering and to submit to the inevitable. We shall never completely master nature; and our bodily organism, itself a part of that nature, will always remain a transient structure with a limited capacity for adaptation and achievement. This recognition does not have a paralyzing effect. On the contrary, it points the direction for our activity. If we cannot remove all suffering, we can remove some, and we can mitigate some: the experience of many thousands of years has convinced us of that. As regards the third source, the social source of suffering, our attitude is a different one. We do not admit it at all; we cannot see why the regulations made by ourselves should not, on the contrary, be a protection and a benefit for every one of us. And yet, when we consider how unsuccessful we have been in precisely this field of prevention of suffering, a suspicion dawns on us that here, too, a piece of unconquerable nature may lie behind -- this time a piece of our own psychical constitution.”