As medium for reaching understanding, speech acts serve: a) to establish and renew interpersonal relations, whereby the speaker takes up a relation t… - Jürgen Habermas

What Kant regarded as a unique (Copernican) turn to transcendental reflection becomes in Hegel a general mechanism for turning consciousness back upon itself. This mechanism has been switched on and off time and time again in the development of spirit. As the subject becomes conscious of itself, it destroys one form of consciousness after another. This process epitomizes the subjective experience that what initially appears to the subject as a being in itself can become content only in the forms imparted to it by the subject. The transcendental philosopher’s experience is thus, according to Hegel, reenacted naively whenever an in-itself becomes a for-the-subject. What Hegel calls “Dialectical” is the reconstruction of this recurrent experience and of its assimilation by the subject, which gives rise to ever more complex structures. … Hegel, it should be noted, exposes himself to a criticism. … Reconstructing successive forms of consciousness is one thing. Proving the necessity of their succession is quite another.

All affected can accept the consequences and the side effects that [the norm's] general observance can be anticipated to have for the satisfaction of everyone's interests, and the consequences are preferred to those of known alternative possibilities for regulation.

The only knowledge that can truly orient action is knowledge that frees itself from mere human interests and is based in Ideas—in other words knowledge that has taken a theoretical attitude.