Philosophy … should not imagine that specialized work in epistemological theory, or whatever else prides itself on being research, is actually philosophy. Yet a philosophy forswearing all of that must in the end be irreconcilably at odds with the dominant consciousness. Nothing else raises it above the suspicion of apologetics. Philosophy that satisfies its own intention, and does not childishly skip behind its own history and the real one, has its lifeblood in the resistance against the common practices of today and what they serve, against the justification of what happens to be the case.

p. 6 - Wozu noch Philosophie? [Why still philosophy?] (1963)