negative aspect. We have seen it as a force working within an old society and modifying it by the loosening of the bonds which its structure imposed on human activity. We have yet to ask what constructive social scheme, if any, could be formed on Liberal principles; and it is here, if at all, that the fuller meaning of the principles of Liberty and Equality should appear, and the methods of applying them be made out. The problem of popular sovereignty pointed to the same need. Thus the lines of the remainder of our task are clearly laid down. We have to get at the fundamentals of Liberalism, and to consider what kind of structure can be raised upon the basis which they offer. We will approach the question by tracing the historic movement of Liberal thought through certain well-marked phases. We shall see how the problems which have been indicated were attacked by successive thinkers, and how partial solutions gave occasion for deeper probings. Following the guidance of the actual movement of ideas, we shall reach the centre and heart of Liberalism, and we shall try to form a conception of the essentials of the Liberal creed as a constructive theory of society. This conception
