Schumpeter, Persian & Arab imperialism

Warrior type, instinct, motive, psychology, evolutionary facts, logic..

The Source:

Imperialism and Social Classes: Two Essays by Joseph Schumpeter, with an introduction by Bert Hoselitz, and translated by Heinz Norden, Meridian Books 1955

First published in Archiv für Sozialwissenshaft und Sozialpolitik, Tubingen, Germany, Vol. 46 (1919) and Vol. 57 (1927).