An obligation voluntarily to communicate good advice. Beyond that, no man owes some thing to his neighbors. Beyond that, his neighbors owe nothing to him. If we would all live that way, this would be the best of possible worlds. We would love our neighbors as ourselves.
Altruism is intellectually nonrespectable because it is contrary to purpose.
The source of the concepts of altruism is men alien to the temper of the Hebrew and Christian religions and vociferously hostile to them. Altruism is a tool of demagogues seeking power, based on bribery and corruption.