This paper examines Jean Floud's assessment of the work of Karl Mannheim, against the background of the development of British sociology of education in the 1940s and 50s. She compared his approach with that of Durkheim, concluding that both adopted a focus on social statics rather than dynamics, this reflecting their conservative political orientations. Some aspects of Floud's critique are questionable, but other points she makes are telling. The issues in dispute here are ones that continue to be of importance in the sociology of education, and in social science more generally.