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

Each individual in a society is a nexus where innumerable relationships of this character intersect.

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.

I came into history from a primary concern with mathematics and science. This has been a tremendous help to me as a person and as a historian, although it must be admitted it has served to make my historical interpretations less conventional than may be acceptable of many of my colleagues in the field.

When the business interests... pushed through the first installment of civil service reform in 1883, they expected that they would be able to control both political parties equally.

When we approach history, we are dealing with a conglomeration of irrational continua. Those who deal with history by nonrational processes are the ones who make history, the actors in it.

The very idea that there is some kind of conflict between science and religion is completely mistaken. Science is a method for investigating experience... Religion is the fundamental, necessary internalization of our system of more permanent values.