Positivism: doctrine according to which true knowledge is achieved only through modern empirical science. Source: ‘What is Good? What is Bad? The Value of All Values across Time, Place and Theories’ by John McMurtry, Philosophy and World Problems, Volume I-III, UNESCO in partnership with Encyclopedia of Life Support Systems: Oxford, 2004-11. 

Postmodernism: Referring to a wide variety of writers forming a recently dominant movement/school of thought whose unifying characteristic is repudiation of all universal principles of reality, truth, value or interpretation in favor of contingent particularity and perspectival modes of thought. See also Linguistic turn. Source: ‘What is Good? What is Bad? The Value of All Values across Time, Place… Read More