The idea of a free man -- The interest in liberty on the scales -- Harm and self-interest -- "Harmless immoralities" and offensive nuisances -- Legal paternalism -- Duties, rights, and claims -- The nature and value of rights -- The rights of animals and unborn generations -- Human duties and animal rights -- Is there a right to be born? -- Voluntary euthanasia and the inalienable right to life -- Duty and obligation in the non-ideal world -- Noncomparative justice -- Wollaston and his critics