in 1930, on an international rockefeller foundation scholarship at harvard university, feigl met the physicist percy williams bridgman, the philosopher willard van orman quine, and the psychologist stanley smith stevens, all of whom he saw as kindred spirits. in 1931, with albert blumberg, he published the paper "logical positivism: a new european movement" which argued for logical positivism to be renamed "logical empiricism" based upon certain realist differences between contemporary philosophy of science and the older positivist movement.