By the deceptively simple act of bending a line at right angles, Stokes has transformed curiosity and utility from mutually exclusive to orthogonal, yet potentially cooperative, motivations of scientific research. The resulting four quadrants offer a historically more informed basis for science policy after the cold war than the linear models of Vannevar Bush's Science, the Endless Frontier, of which Pasteur's Quadrant is an articulate and insightful critique?Michael S. Mahoney, Princeton UniversityThis book illuminates the tragedy of Don Stokes's early death. Stokes was deeply thoughtful about the policy process and also understood the science. As the balanced budget philosophy increases downward pressure on science and technology budgets, Stokes lays out clearly how a more realistic view of the relationship between research for understanding and research for application should be cooperation, not opposition. The model developed by Stokes should be studied and used by anyone interested in a more effective use of federal research and development funds.John F. Ahearne, Director. Sigma Xi Center, former Chair U.S. Nuclear Regulatory CommissionDonald E. Stokes's analysis will, one hopes, finally lay to rest the unhelpful separation between 'basic' and 'applied' research that has misinformed science policy debates for decades. But even more importantly, he points the way to a new compact between science and societya compact that should have formed in the wake of the cold war but still hasn't:Congressman George E. Brown, Jr., Ranking Democratic Member, Committee on Science