“The most important rules of governance of people are those related to action. When will one act, how will one act, and what will be the limits of that action? The answer to these questions constitutes the whole art of politics.”

The famous sociologist-psychologist innovates once again by writing a book on Political Psychology. The great leaders of nations were necessarily great psychologists. Napoleon may have known very well the psychology of the French, but he was deeply ignorant of that of the Russians and the Poles, and this ignorance led him to the adventure of wars, where his conquering genius failed against the unsuspecting patriotism that no power could conquer.

The science of governance is as necessary as political leaders will not be able to surpass it. It is built with various materials drawn from the study of individual psychology, that of the mob, the psychology of nations, and finally from the lessons of History.