Libertarians generally are hostile to duties (with the exception of "voluntary" contracts.) Duties are the opposite of liberties according to Hohfeld. But all rights, including property rights, create duties for others, a fact libertarians try to ignore.
Nothing in this index yet.
There are also many positive acts for the benefit of others, which he may rightfully be compelled to perform; such as, to give evidence in a court of justice; to bear his fair share in the common defense, or in any other joint work necessary to the interest of the society of which he enjoys the protection; and to perform certain acts of individual beneficence, such as saving a fellow-creature's life, or interposing to protect the defenseless against ill-usage, things which whenever it is obviously a man's duty to do, he may rightfully be made responsible to society for not doing.
John Stuart Mill, "On Liberty"