Rights of freedom may be both active and passive. Passive claim rights of freedom are rights to be let alone and not interfered with or harmed. Various attempts may be made to justify the constraints imposed upon others by A’s possession of a claim right of freedom. To speak of different individuals’ rights limiting each other nevertheless appears to imply a need for some principles according to which such limits are to be set if they are not to be purely a matter of arbitrary convention. Finally something must be said concerning a right additional to those, namely, the right to have one’s right of freedom and security protected from infringement when others fail in their duty voluntarily to forbear from such infringements. The protection of one’s security and freedom usually figure among the legal rights of the citizen and, it is, subject to certain reservations, normally one’s moral right to receive one’s legal due.