  Although they cite Francis Bacon as a leading spokesman for an instrumentalized reason that becomes irrational, Horkheimer and Adorno do not think that modern science and scientism are the sole culprits. The tendency of rational progress to become irrational regress arises much earlier. Indeed, they cite both the Hebrew scriptures and Greek philosophers as contributing to regressive tendencies. If Horkheimer and Adorno are right, then a critique of modernity must also be a critique of premodernity, and a turn toward the postmodern cannot simply be a return to the premodern. Otherwise the failures of modernity will continue in a new guise under contemporary conditions. Society as a whole needs to be transformed.