In the course of history ... new books have been written that have won their place in the list. Books once thought entitled to belong to it have been superseded; and this process of change will continue as long as men can think and write. It is the task of every generation to reassess the tradition in which it lives, to discard what it cannot use, and to bring into context with the distant and intermediate past the most recent contributions to the Great Conversation. ... the West needs to recapture and reemphasize and bring to bear upon its present problems the wisdom that lies in the works of its greatest thinkers and in the discussion that they have carried on.