individuals and the psychologically relevant attributes of social structures. To oversimplify it, I hope that they will provide a successful integration of the orientations of three of the intellectual heroes of my youth: Freud, Marx, and Lewin.
Leon Festinger, in contrast, asked me, "Is this science?" I replied, "Leon, you and I have a different conception of the nature of science." My conception, I believe, was more inclusive than his. Leon and his followers were always puzzled by me: They thought I did fine theoretical and experimental work, but they did not understand my willingness to apply the best available social science knowledge to important social issues even when that knowledge was not firmly rooted in experimental research.
The meeting in Prague was sponsored by the Transnational Social Psychology Committee of the Social Science Research Council (SSRC). Leon was its chair, and under his leadership it did much to stimulate the development of social psychology in Western Europe.