The theory of cultural science can be participated in by cultural scientists as well as philosophers and the latter must respect the actual practice of the scientists. Theory of science is about basic concepts and methods. For Schutz, all science is theoretical, which makes the question of application clearer, and cultural science addresses the field of objects always already interpreted in everyday life. Scientifically social science differs from the historical and psychological sciences in focusing on the world of contemporaries, who share time but not space with a self. Schutz's remarks about the theory of law in particular are used to concretize this study of a position that has interested colleagues in at least eighteen disciplines other than philosophy.