Abstract
No final statement can be made regarding the relations between science and policy-making. Knowledge, values, and techniques are interrelated, cumulative, and constantly changing. They are derived from man's responses to the complicated interactions between physical, biological, and cultural phenomena. Final answers are impossible because the answers themselves are part of the world and therefore are factors in changing it. We see through a glass darkly, whether it be the giant glass of Palomar or the eye-piece of the electron microscope.