Peter F Drucker : The postwar [WWII] GI Bill of Rights--and the enthusiastic response to it on the part of America's veterans--signaled the shift to the knowledge society. Future historians may consider it the most important event of the twentieth century. We are clearly in the midst of this transformation; indeed, if history is any guide, it will not be completed until 2010 or 2020. But already it has changed the political, economic and moral landscape of the world. -- Managing in a Time of Great Change (1995) # History and Historians # Change # Responsibility