Karl Popper on Suffering-focused ethics

“We should realize that from the moral point of view suffering and happiness must not be treated as symmetrical; that is to say, the promotion of happiness is in any case much less urgent than the rendering of help to those who suffer, and the attempt to prevent suffering.”

“[F]rom the moral point of view, pain cannot be outweighed by pleasure, and especially not one man's pain by another man's pleasure. Instead of the greatest happiness for the greatest number, one should demand, more modestly, the least amount of avoidable suffering for all [...].”

“[T]he fight against suffering must be considered a duty, while the right to care for the happiness of others must be considered a privilege confined to the close circle of their friends. ... Pain, suffering, injustice, and their prevention, these are the eternal problems of public morals, the 'agenda' of public policy ...”

“I believe that there is, from the ethical point of view, no symmetry between suffering and happiness, or between pain and pleasure. Both the greatest happiness principle of the Utilitarians and Kant's principle, "Promote other people's happiness...", seem to me (at least in their formulations) fundamentally wrong in this point, which is, however, not one for rational argument. [...] In my opinion [...] human suffering makes a direct moral appeal for help, while there is no similar call to increase the happiness of a man who is doing well anyway.”