Adorno urged Marcuse to keep his theory’s foundation hidden

Evidence

The criticisms Adorno made, without getting himself involved in any discussion of the position Marcuse had taken, ultimately amounted to advising him to proceed in the same way as Adorno and Horkheimer themselves: to maintain his cover and not present the central focus of his thought as a tangible, certain foundation. — Rolf Wiggershaus, The Frankfurt School, 2169

Categorization

• QUESTION: What exactly did Adorno critique in Eros and Civilization, and why did he refuse direct engagement with Marcuse’s position?