Human rights are, of course, rights of a certain kind, and rights are specific kinds of moral, political or legal claims. Consider the following cases. Suppose I lose my wallet and won’t be able to get home unless I come up with $5.00 for the train. I might ask a colleague for a loan, pointing out that, were he to agree, he would display the virtues of generosity and kindness, and would also promote utility, since his $5.00 would create more happiness in my hand than sitting unused in his wallet for the night. However, I cannot insist he help me, even if I am right about what virtue and utility recommend. He has no duty to make the loan.
Suppose alternatively that discovering the absence of my wallet reminds…