At the book's core is the contention that, in tandem with the general philosophical retreat away from rationalism triggered by late nineteenth-century and early twentieth-century criticisms (Bergson, Nietzsche, Dilthey, Husserl, etc.) of idealist metaphysics and its contingent aspirations to truth, there was a subjectivizing impulse that, in Adorno's view, was content to elevate proximally emotional states of mind and pre-rational impressions to the status of philosophical, or, more exactly, ontological absolutes. Thus, instead of now arising from what some judged to be rationalism's stillborn questing for truth (as it no longer had any objective foundations), these new categories formed a compensatory subjectivizing 'jargon' ('compensatory` in the sense that the still reigning bourgeois rationalism needed supplemental amounts of irrationalism in order to keep functioning).