There is no peeping out. What would lie in the beyond makes its appearance only in the materials and categories within. This is where the truth and the untruth of Kantian philosophy divide. It is true in destroying the illusion of an immediate knowledge of the Absolute; it is untrue in describing this Absolute by a model that would correspond to an immediate consciousness, even if that consciousness were the intellectus archetypus. To demonstrate this untruth is the truth of post-Kantian idealism; yet this in turn is untrue in its equation of subjectively mediated truth with the subject-in-itself--as if the pure concept of the subject were the same as Being.

Adorno, Negative Dialectics

Theory and mental experience need to interact. Theory does not contain answers to everything; it reacts to the world, which is faulty to the core. What would be free from the spell of the world is not under theory's jurisdiction. Mobility is of the essence of consciousness; it is no accidental feature. It means a doubled mode of conduct: an inner one, the immanent process which is the properly dialectical one, and a free, unbound one like a stepping out of dialectics. Yet the two are not merely disparate. The unregimented thought has an elective affinity to dialectics, which as criticism of the system recalls what would be outside the system; and the force that liberates the dialectical movement in cognition is the very same that rebels against the system. Both attitudes of consciousness are linked by criticizing one another, not by compromising.

-Adorno,Negative Dialetics