Columbia subject headings:
Harvard subject headings:
Authority.
Duty.
Hobbes, Thomas, 1588-1679--Political science.
Liberty.
Locke, John, 1632-1704--Political science.
Princeton subject headings:
Authority.
Duty.
Hobbes, Thomas, 1588-1679--Political science.
Liberty.
Locke, John, 1632-1704--Political science.