He who strives after a new philosophy of life confesses himself thereby to be of the conviction that the philosophies of the present no longer satisfy mankind; and so we must begin by giving reasons for sharing this conviction. In doing this we hope to be able to take a positive survey of the present situation as a whole, and also to gain a firm starting-point for the course in which the new is to be sought, and not simply to remain fixed in a mere negative attitude. A precise statement of the question is the first condition for a correct answer; to satisfy this requirement is the chief concern of the first part of our treatise. Philosophies of life, representations of human life as a whole, surround us to-day in abundance and court our adherence. The fusion of rich historical development with active reflection gives occasion to the most diverse combinations and makes it easy for the individual to project a representation corresponding to his circumstances and his mood. Thus, to-day, the philosophies of life of individuals whirl together in chaotic confusion, gain and lose the passing favour, displace one another, and themselves change kaleidoscopically. It is not the concern of philosophy to occupy itself more closely with opinions so accidental and so fleeting. There are, however, philosophies of life of another kind, conceptions of life, which unite and dominate large numbers of people, hold up a common ideal for their activity, and constitute a power in the life of universal history. These philosophies of life are rooted in particular concrete forms of life, in actual combinations of working and striving, which with dominating power surround the individual and point out his course. With such ascendancy they may seem to him to be unassailable and a matter of natural necessity; in reality they are a product of the industry of universal history, and from this point of view appear merely as attempts to comprehend the boundless stream of life and to win a character for our otherwise indefinite existence. For at first we stand defenceless and helpless in face of the wealth of impressions and suggestions which throng upon us and draw us in opposite directions. Only in one way are we able to prevail: life must concentrate and acquire a controlling centre within itself, and from that begin a process of counteraction. We lack distinction of centre and environment; we need an inner aspiration, an aspiration which seeks to draw the whole of existence to itself and to mould it in its own particular way. This, however, is impossible, unless at the same time a philosophy of life, a profession of faith as to the nature of the whole, a justification of our undertaking, is evolved. A philosophy of life established in this manner will be incomparably more powerful, and fuller in content, than the mere foam on the surface of time.