Horkheimer later dropped the dark-rebel alliance, keeping only an appeal to objective truth.

Evidence

The problematic nature of the notion of reviving bourgeois ideas from below led to the virtual omission in later texts of any mention of the alliance with the dark' form of rebellion. What remained was the complaint about the loss of objective reason and about the disdain for speculation and contemplationwith a simultaneous appeal to objective truth’. This appeal of a metaphysical principle was from now on more consistent in Horkheimer than the appeal to the theological motifs of hope and salvation was in Adorno. — Rolf Wiggershaus, The Frankfurt School, 1474

Categorization

• XREF: Contrasts Horkheimer’s metaphysical appeal to objective truth with Adorno’s theological motifs of hope — a long-standing divergence noted across the book.