"[T]echnical questions... constitute the bulk of our daily problems... But to everyone there is one correct answer. What is correct today may be made incorrect tomorrow by an advance in our knowledge or experience or by changes in the facts; but at any given time and place there is one optimum... provable, measurable, demonstrable... [i.e.,] objectively correct. ...[T]hat means that the human will does not enter. Without human will, however, there is no choice... no freedom. The whole technical and scientific field, is... ethically neutral; and freedom, like all other basic values, is an ethical value."