Applied psychology

"Administration is both social engineering and applied psychology. It is apparatus and mechanics, incentives and human nature. Let no one think it is merely the former. Nowhere is the need for psychology greater than in the organization, direction, and inspiration of men working in large groups. Outstanding administrative results are produced by spirit, morale, atmosphere; these, in turn, are the product of psychological mainsprings and invigorating incentives. As Benjamin Lippincott has recognized, both governmental and business administration resolve fundamentally into the role played by effective incentives."

"War has given applied psychology a tremendous impulse. This will, on the whole, do good, for psychology, which is the largest and last of the sciences, must not try to be too pure."

"It is in applied psychology, if anywhere, that today we should be modest and grant validity to a number of apparently contradictory opinions; for we are still far from having anything like a thorough knowledge of the human psyche, that most challenging field of scientific enquiry. For the present we have merely more or less plausible opinions that defy reconciliation."

"Applied psychology can... speak the language of an exact science ill its own field, independent of economic opinions and debatable partisan interests."