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.

The social sciences are usually concerned with groups of persons rather than individual persons. The behavior of individuals, being free, is unpredictable.

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

No scientist ever believes that he has the final answer or the ultimate truth on anything.

After years of work in both areas of study, I concluded that the social sciences were different, in many important ways, from the natural sciences, but that the same scientific methods were applicable in both areas, and, indeed, that no very useful work could be done in either area except by scientific methods.

The failure of Christianity in the areas west from Sicily was even greater, and was increased by the spread of Arab outlooks and influence to that area, and especially to Spain.

It is this power structure which the Radical Right in the United States has been attacking for years in the belief that they are attacking the Communists.