In Ideololy and Utopia in 1929 Karl Mannheim (1893-1947) argued that all knowledge, except in mathematics and physics, is ideological, a reflection of class interests and values; that there is no such thing as objective knowledge or absolute truth.
Mannheim distinguished between ruling class ideologies and those of Utopian or revolutionary groups, arguing that knowledge is thus created by a continual power struggle between rival groups and ideas.
Later works such as Man and Society in 1940 analysed modern mass society in terms of its fragmentation and susceptibility to extremist ideas and totalitarian governments.
Why is Karl Mannheim famous?
Karl Mannheim was a Hungarian sociologist, who setded in the UK in 1933.