 He attributed this decline to psychological factors (a city with "depressed", "disinterested" and "filthy" inhabitants), but also to clientelism and the excessive powers of the central government.On Washington's Birthday, 1932, he discussed "The Scientific Spirit in America and in Europe" at the Friends of America society in Bucharest.An admirer of the British educational model, he was a research fellow at the University of Cambridge for four to six months a year in 1927–1930, 1932 and 1935–1938.