This document discusses various perspectives on the definition of learning from different psychologists and theorists. It provides definitions of learning from scholars like Gardner Murphey, Henry P. Smith, Woodworth, Kingsley & Garry, and Crow & Crow. It also summarizes theories of learning from theorists like Thorndike and his law of effect, Pavlov and his work on classical conditioning, Skinner and operant conditioning, Kohler's insight theory of learning, and Lewin's field theory of learning. The document contrasts stimulus-response theories with Gestalt field theories of learning and cognition.