It has already been made clear in the introduction and elsewhere in this book that issues of value are inherent in all current social science theories and in the concept of ‘welfare’. It could therefore be expected that philosophical theories would have some contribution to make to the consideration of welfare. In practice, although students of social administration have often received some introductory teaching on political philosophy, there has in the past been little reference to philosophy in the literature of social administration. Issues of value have been discussed without reference to philosophy.