Pragmatism: An a-posteriori theory of knowledge and value whose defining idea is “what works”. Naturalistic, experimentalist, developmental, and instrumentalist in its various forms, it repudiates all dualisms, but like science does not answer the question ‘works for what?’

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.