You like to think you owe your brother nothing. Your "neighbor", after all, is as distant from you as your most distant ancestor. What do you owe to these people who existed in places, times and circumstances so different from yours, to the point that, if by a completely implausible miracle you were to meet them, you would feel like you were dealing with aliens? In fact, these "others" who came before you, whose fatuities led them to engender, little by little, the acts that would result in your existence, had little or nothing to do with you, neither in language, nor in manners, nor in ideals. If you have a surname in common with them, that's all of it. And if from this multitude of anonymous people, your "flesh", your "blood", did not inherit any trace of gratitude, what can we say about being grateful to these strangers who swarm around you, with other names, other faces, other languages, other bodies, demanding your sacrifice, demanding ...