Here, then, is the field proper to philosophy. The scientist _qua_ scientist is intent upon his own determinate enterprise. The philosopher comes into being as one who is interested in observing what it is that the scientist is so intently doing. In taking this interest he has accepted as a field for investigation that which he would designate as the totality of interests or the inclusive experience. He can carry out his intention of defining the scientific attitude only by standing outside it, and determining it by means of nothing less than an exhaustive searching out of all attitudes. Philosophy is, to be sure, itself a definite activity and an attitude, but an attitude required by definition to be conscious of itself, and, if you please, conscious of its own consciousness, until its attitude shall have embraced in its object the very principle of attitudes. Philosophy defines itself and all other human tasks and interests. None have furnished a clearer justification of philosophy than those men of scientific predilections who have claimed the title of agnostics. A good instance is furnished by a contemporary physicist, who has chosen to call his reflections "antimetaphysical." "Physical science does not pretend to be a _complete_ view of the world; it simply claims that it is working toward such a complete view in the future. The highest philosophy of the scientific investigator is precisely this _toleration_ of an incomplete conception of the world and the preference for it, rather than an apparently perfect, but inadequate conception."[120:1] It is apparent that if one were to challenge such a statement, the issue raised would at once be philosophical and not scientific. The problem here stated and answered, requires for its solution the widest inclusiveness of view, and a peculiar interest in critical reflection and logical coördination. [Sidenote: The Procedure of a Philosophy of Science.] § 41. One may be prepared for a knowledge of the economic and social significance of the railway even if one does not know a throttle from a piston-rod, provided one has broad and well-balanced knowledge of the interplay of human social interests. One's proficiency here requires one to stand off from society, and to obtain a perspective that shall be as little distorted as possible. The reflection of the philosopher of science requires a similar quality of perspective. All knowledges, together with the knowing of them, must be his object yonder, standing apart in its wholeness and symmetry. Philosophy is the least dogmatic, the most empirical, of all disciplines, since it is the only investigation that can permit itself to be forgetful of nothing.