After Habermas published Structural Transformation, he spent twenty years on an intellectual journey. He used this time re-equipping and repositioning himself in respect to the tradition of Hegelian-Marixism where he had never felt truly comfortable. ‘Habermas's new approach to social theory’ discusses how his philosophy developed during this time. He developed three interests: the notion that human freedom can be meaningfully conceived as the emancipation of the forces of production; the traditions of American pragmatism and German hermeneutics; and the idea that all knowledge must conform to natural sciences. From these three ideas, Habermas developed his mature theory which formed the basis of his theory of meaning and rationality and his social, moral, political, and legal theories.