The possibility of encountering genuine novelty can never be ruled out – this is indeed one of the principal lessons of the past itself. And there is a special justification for the direct search for novelty, creativity, and uniqueness: without these attributes change, at least large-scale social change, may not be possible at all. For, in the first place, the powerful social forces opposed to change will be quite proficient at blocking off those paths of change that have already been trod. Secondly, revolutionaries or radical reformers are unlikely to generate the extraordinary social energy they need to achieve change unless they are exhilaratingly conscious of writing an entirely new page of human history. —Albert O. Hirschman