This document provides an overview of key legal concepts including legal rights, duties, and wrongs. It defines legal concepts as working tools of judicial reasoning according to law that expound relations between notions like rights, duties, powers, privileges, liability, and immunity. Legal rights are interests recognized and protected by law, while duties are obligatory acts or refraining from acts. Legal wrongs are acts contrary to rules of right and justice. The document also discusses theories of legal rights, essential elements of a legal right, classifications of rights, and provides an example case analysis regarding a hospital disclosing a patient's HIV status.