Max Horkheimer Quote

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.

p. 6. - Eclipse of Reason (1947)