He served as a senior lecturer at the time of his retirement after 22 years (1981 to 2002).

He also served as a lecturer on journalism at several universities.

He then served as a lecturer in Princeton's department of politics (1927-1930), teaching international relations and foreign policy.

He did agree to serve as a lecturer at the yeshiva.

He subsequently served, until 1951, as lecturer in law in his former university.

He served his alma mater as lecturer and professor until 1987.

He also served as a lecturer on constitutional law at the University of Iowa from 1902 to 1911.

After graduation he served as a lecturer of architecture and structural engineering at the same university.

From 1921-1925, he served as lecturer in psychology at Columbia University.

He served as a lecturer in law at the Allahabad University from 1940 to 1954.