Rights
Rights are legal, social, or ethical principles of freedom or entitlement; that is, rights are the fundamental normative rules about what is allowed of people or owed to people, according to some legal system, social convention, or ethical theory. Rights are of essential importance in such disciplines as law and ethics, especially theories of justice and deontology.
Rights
For the ultimate notion of right is that which tends to the universal good; and when one's acting in a certain manner has this tendency he has a right thus to act.
Francis Hutcheson, A System of Moral Philosophy, The General Notions of Rights and Laws Explained, Book II, Chapter III.