And it is precisely for this reason that a theoretical task and achievement like that of a natural science (or any science of the world) which can master the infinity of its subject matter only through infinities of method and can master the latter infinities only by means of a technical thought and activity which are empty of meaning can only be and remain meaningful in a rue and original sense if the scientist has developed in himself the ability to inquire back into the original meaning of all his meaning structures and methods,.e., into the historical meaning of their primal establishment, and especially into the meaning of all the inherited meanings taken over unnoticed in this primal establishment, as well as those taken over later on.