How do we say anything?

This problem of self-reference is not merely a logical problem, nor is it new. It continually presents itself as the defining problem of modernity. Once the apparently solid, external ground of tradition, God, and the monarchy was replaced by the exercise of rational self-grounding, self-reference in the guises of historicism (all statements, including this one, are historically conditioned), psychoanalysis (all intellectual achievements, including this one, are the result of sublimation), political philosophy (all philosophy, including this one, is ideological), and rhetorical analysis (all statements, including this one, rhetorical) becomes unavoidable. Of course, the "including this one" clause has generally been excluded: all other philosophies are ideological, etc."

--William Rasch, The Lyotard Archipelago

Dasein is the being of its basis, indeed.