“When we attribute to one historical epoch one intellectual world and to ourselves another one, or if a certain historically determined social stratum thinks in categories other than our own, we refer not to the isolated cases of thought-content, but to fundamentally divergent thought-systems and to widely differing modes of experience and interpretation.”
Ideology and Utopia (1929)
Context: The particular conception of "ideology" makes its analysis of ideas on a purely psychological level. If it is claimed for instance that an adversary is lying, or that he is concealing or distorting a given factual situation, it is still nevertheless assumed that both parties share common criteria of validity — it is still assumed that it is possible to refute lies and eradicate sources or error by referring to accepted criteria of objective validity common to both parties. The suspicion that one's opponent is the victim of an ideology does not go so far as to exclude him from discussion on the basis of a common theoretical frame of reference. The case is different with the total conception of ideology. When we attribute to one historical epoch one intellectual world and to ourselves another one, or if a certain historically determined social stratum thinks in categories other than our own, we refer not to the isolated cases of thought-content, but to fundamentally divergent thought-systems and to widely differing modes of experience and interpretation.
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Karl Mannheim 28
Hungarian sociologist 1893–1947Related quotes
[Buchli (Ed.), Victor, Christopher, Tilley, The Material Culture Reader, 2002, Berg, 1-85973-559-2, Oxford]

On My Philosopy (1941)
Context: Our questions and answers are in part determined by the historical tradition in which we find ourselves. We apprehend truth from our own source within the historical tradition.
The content of our truth depends upon our appropriating the historical foundation. Our own power of generation lies in the rebirth of what has been handed down to us. If we do not wish to slip back, nothing must be forgotten; but if philosophising is to be genuine our thoughts must arise from our own source. Hence all appropriation of tradition proceeds from the intentness of our own life. The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the language of the past, the nearer I shall feel the glow of its life.
Source: "Attribution theory and research." 1980, p. 458; Lead paragraph
Source: World views. From Fragmentation to Integration (1994), p. 8

Source: The Reconstruction of Religious Thought in Islam https://www.google.com/books/edition/The_Reconstruction_of_Religious_Thought/uCh14nl09jkC?hl=en (1930), p. 14

from Jorn's 'Notebook', containing the draft for a book on Danish experimental art (1948)
1949 - 1958, Various sources