McMurtry, J. (1998). Unequal Freedoms. Toronto: Garamond. [The first systematic elaboration of the idea of the ‘life-ground of value’, the book expresses a conceptual revolution in Western philosophical thought].
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.