Yet such phrases as “what it is” and “for its own sake” must not mislead us. They do not mean that the nature of any reality which we experience can be appreciated in isolation from the general world of life and knowledge. On the contrary, they imply that when fully and fairly considered from the most thoroughly adequate point of view, our subject matter will reveal its true position and relations with reference to all else that man can do and can know. This position and these relations constitute its rank or significance in the totality {3} of experience, and this value or significance--in the present case, what the form of life in question enables man to do and to become--is just what we mean by its nature “in itself,” or its full and complete nature, or its significance when thoroughly studied “for its own sake” from an adequate point of view. Further illustrations of the distinction between an adequate point of view and partial or limited modes of consideration, and of the relations between the former and the latter, will be found in the following chapter. 2. In a certain sense it would be true to say that wherever men have lived, there has always been a “State.” That is to say, there has been some association or corporation, larger than the family, and acknowledging no power superior to itself. But it is obvious that the experience of a State in this general sense of the word is not co-extensive with true political experience, and that something much more definite than this is necessary to awaken curiosity as to the nature and value of the community in which man finds himself to be a member. Such curiosity has been awakened and sustained principally if not exclusively by two kindred types of associated life--the City-state of ancient Greece, and the Nation-state of the modern world. It will throw light on the nature of our subject if we glance rapidly at the characteristics to which it is due that political philosophy began in connection with the former, and revived in connection with the latter. In considering the Greek city-states in connection with the birth of political philosophy, there are three points which press upon our attention:{4} _a_. the type of experience which they presented; _b_. the type of mind which that experience implied; and _c_. the type of interpretation which such a mind elicited from such an experience.