Blacks Law Dictionary, 5th Edition

Liberty embraces freedom from duress; freedom from government interference; freedom of locomotion; liberty embraces the Right of self-defence against unlawful violence; right to acquire and enjoy property; Right to acquire useful knowledge; the Right to earn livelihood in any lawful calling; right to engage in a lawful business; Right to determine the price of one's labor; The Right to freely buy and sell as others may; right to live and work where one will. Right to marry and have a family.

— Blacks Law Dictionary