O

Oates. – 2004  Goldie; 1999  Simonutti; 1984  O’Donnell; 1965  Harrison & Laslett; 1953  Laslett; 1952  Bourke-Borrowes, Laslett, Stevens; 1929  Wallas; 1898  Down; 1850  S.A.; 1821  Anonymous; Locke  #23

Oaths of allegiance. – 1990  Hartogh, Schwoerer

Obedience. – 2005  Rose; 1993  Eccleshall, Mitchell; 1981  Watt; 1975  Biddle; 1973  Aaron; 1972  Cohen, Frazier; 1970  Natanson; 1815  Peacock; 1797  Boucher; 1785  Paley; 1768  Hutchinson; 1749  Grove; 1705  Blackall; 1694  Tindal; 1690  Anonymous; 1661  Ussher

Objectivity. – 2007  Newman; 1981  Hall; 1930  Lovejoy; 1857  Rosell

Objects. – 2004  Cléro, Rogers; 1988  Roth; 1980  Routley, Vesey; 1975  Cummins

Obligation. – 2008  Smaw; 2007  Sheridan; 2006  Lawler; 2003  Colman; 2001  Stemmer; 2000  Flage, Harris, Schochet; 1999  Hoffman, Parkin, Shapiro, Wilhelm; 1996  Herbert; 1995  Darwall, Rebard, Ward; 1994  Schneewind, Wolterstorff; 1993  Bolton; 1992  Ashcraft; 1991  Buckle, Gordley, Kelly; 1989  Lawson, Vienne; 1988  Letwin, Tully; 1987  Cvek, Lustig, Soles; 1986  Hittinger, Pringle, Regan, Shapiro, Spitz, Stucki, Ten; 1985  Herzog; 1983  Fagiani, Goyard-Fabre; 1977  Gauthier; 1972  Moulds; 1965  Pitkin; 1964  Penati; 1963  Byrne; 1961  Abrams; 1954  Von Leyden; 1888  Carrau; 1726  Clarke; 1660  Sanderson

Obligation, Political. – 2006  Varden; 2005  Lowe; 2003  Durning, Harrison, Lomonaco; 2000  Scott, Shimokawa; 1997  Rogers; 1995  Hochstrasser; 1994  Becker; 1993  Spitz; 1992  Jung, Semerari; 1991  Foster; 1990  Lawson; 1989  Waldron; 1988  Andrew; 1987  Dworetz, Waldron; 1984  Bookman, Snyder; 1983  Bessusi, Eisenach, Goldie, Kilcullen, Tarcov; 1982  Herzog, Pappu, Reeve; 1981  Eisenach, May, Von Leyden, Watt; 1980  Beitz, Dunn, Poole, Wallace; 1979  MacCormick, Pateman #1, Pateman #2, Simmons; 1978  Arras, Steinberg, Weale; 1977  Dagger; 1976  Bank & McCarl, Grady, Simmons; 1974  Salkever; 1973  Gale; 1972  Grady; 1970  Natanson; 1950  Capiz; 1938  Plamenatz; 1935  Carritt; 1885  Green; 1798  Elrington; 1785  Paley

Observation. – 2005  MacIntosh; 2004  Buickerood, Mishori; 1992  Downing; 1990  Sánchez González; 1987  Farr; 1985  Armstrong, Soles; 1983  Romanell; 1973  Duchesneau; 1970  Duchesneau; 1969  Yolton; 1964  Romanell; 1961  Wolfe

Obscure ideas. – 1984  Day

Occupation. – 1992  Brocker

Ockham, William of. – See William of Ockham.

O’Connor, Flannery. – 1992  Roos

Oligarchy. – 1994  Myers

Olives. – Locke  #803

Ontological proof of the existence of God. – 1994  Rovira; 1911  Torcianti

Ontology. – 1993  Lennon; 1990  Chappell; 1692  Le Clerc

Opinion. – 2005  Milton; 2004  Green; 2001  Schuurman; 1999  Foley; 1995  Rogers; 1993  Owen; 1991  Aune; 1990  Hittinger; 1989  Specht; 1987  Cranston, Thompson; 1986  Ferreira; 1984  Weinsheimer; 1983  Tipton; 1982  Vatamaniuc; 1979  Noelle-Neumann; 1973  Helm, Tanaka; 1966  Jeffner; 1964  Petrović; 1903  Paschkan; 1882  Eminescu

Opposition (Politics). – 1981  Power

Optics. – 1990  Bolton; 1985  Cantor

Optimism and pessimism. – 1999  Foley; 1994  Schouls; 1990  Schouls; 1967  Vereker; 1952  Vereker

Oral method of teaching. – 1948  Beeler

Order. – 1998  Esselstrom; 1981  Malekin

Organisms. – 2004  Stuart; 1999  Conn; 1990  Chappell; 1988  Alston & Bennett

Organization of knowledge. – 1981  Totok

Original sin. – 2007  Harrison; 2005 : Heyd; 2003 : Helm; 2002  Nuovo; 2000  Marshall; 1999  Polinska; 1997  Quinn; 1988  Spellman #1, Spellman #2; 1986  Spellman

Originality. – 1996  Otabe; 1984  Weinsheimer

Orobio de Castro, Isaac. – 1989  Kaplan

Orthodoxy. – 2003  Ellenzweig; 2002  Champion; 1985  Kessler

Ossian. – 1995  Clark

Oswald, James. – 1997  Menneteau; 1774  Priestley

Otis, James. – 1998  Breen

Otsuka, Michael. – 2006  Enoch

Overton, Richard. – 1999  Basu

Ownership. – 2007  Syse; 2006  Tierney; 2004  De Jasay, Duffin; 2003  Haddad; 2000  Schochet; 1999  Berry, Zack; 1998  Berry; 1997  Bishop; 1995  Shapiro, Sreenivasan, Zack; 1994  Christman, Lea; 1992  Arneil, Ellis, Taliaferro, Zack; 1991  Arneson, Mautner; 1989  Day, Valcke; 1988  Angehrn, Kelly, Schwarzenbach; 1986  Christman; 1985  Andrew; 1980  Paul & Paul; 1973  Gale

Oxford. – 1973  Hargreaves-Mawdsley

Oxford University. – 1997  Feingold; 1995  Milton; 1994  Milton; 1990  Vander Motten; 1980  Dewhurst; 1973  Hargreaves-Mawdsley; 1968  Axtell; 1964  Dewhurst; 1963  Dewhurst; 1959  Dewhurst, Kenney; 1946  Horne; 1941  Aspelin; 1914  Osler; 1900  Thompson; 1875  Bourne, Pattison, Prideaux; 1850  Anonymous; 1829  Grenville; 1808  Fox