Reason has never really directed social reality, but now reason has been so thoroughly purged of any specific trend or preference that it has finally… - Max Horkheimer

In the subjectivist view, when ‘reason’ is used to connote a thing or idea rather than an act, it refers exclusively to the relation of such an object or concept to a purpose, not to the object or concept itself. It means that the thing or the idea is good for something else. There is no reasonable aim as such, and to discuss the superiority of one aim over another in terms of reason becomes meaningless. From the subjective approach, such a discussion is possible only if both aims serve a third and higher one, that is, if they are means, not ends.

The pathfinders of modern thought did not derive what is good from the law. … Their role in history was not that of adapting their words and actions to the text of old documents or generally accepted doctrines: they themselves created the documents and brought about the acceptance of their doctrines.

The inversion of external compulsion into the compulsion of conscience … produces the machine-like assiduity and pliable allegiance required by the new rationality.