For years I have told my students that I been trying to train executives rather than clerks. The distinction between the two is parallel to the distinction previously made between understanding and knowledge. It is a mighty low executive who cannot hire several people with command of more knowledge than he has himself.

Islam, the third in historical sequence of the ethical monotheistic religions of the Near East, was very successful in establishing its monotheism, but had only very moderate success in spreading its version of Jewish and Christian ethics to the Arabs.

A fully integrated culture would be like the dinosaurs, which had to perish because they were no longer able to adapt themselves to changes in the external environment.

The process by which civilization, as an abstract entity distinct from the societies in which it is embodied, dies or is reborn is a very significant one.

By the winter of 1945-1946, the Russian peoples were being warned of the dangers from the West

To this day the Arab influence is evident in southern Italy, northern Africa and, above all, in Spain.

A society is a group whose members have more relationships with one another then they do with outsiders.