San Francisco | Harvard University | Columbia University | Yale University | University of Paris | New York University | Stanford University | Princeton University | University of Cambridge | University of Pennsylvania | University of Michigan | University of Chicago | University of California, Berkeley | University of Toronto | Cornell University | San Diego | University of Oxford | University of London | University of Oslo | Cambridge University | University of Southern California | San Salvador | McGill University | Johns Hopkins University | San Antonio | Northwestern University | University of California | Brown University | University of Queensland | University of Minnesota |
He also sered as Visiting Professor in prestigious institutions around the world, including: the University of California, Stanford, Columbia, the University of Michigan, and Cornell, the University of Toronto, the University of Oxford, the University of Milan, the University of San Marcos in Peru, and the University of Chile.
He was appointed as an honorary member of the faculty at the University of San Marcos in Lima, Peru.
For some years he held the chair of metaphysics, statistics, and finance at the University of San Marcos, while at various times he was the editor of such prominent publications as El Nacional, El Diario, La Reconstitución, El Perú, and La Revista Militar y Navel.