Propaganda must appeal to mankind's better judgment and to the necessary belief in a better future. For this belief, the valley of the shadow of death is but a war station on the road to the blessed summit.

The simultaneous reactions elicited all over the world by the reading of newspaper dispatches about the same events create, as it were, a common mental pulse beat for the whole of civilized mankind.

Just as characteristic, perhaps, is the intellectual interdependence created through the development of the modern media of communication: post, telegraph, telephone, and popular press.

Upon the union of the male germ cell with the female egg cell, a new cell is created which almost immediately splits into two parts. One of these grows rapidly, creating the human body of the individual with all its organs, and dies only with the individual.

The main concept is that of an international solidarity expressed in practice through worldwide division of labor: free trade is the principal point in the program of internationalism.

History shows us that other highly developed forms of civilization have collapsed. Who knows whether the same fate does not await our own?

Modern techniques have torn down state frontiers, both economical and intellectual. The growth of means of transport has created a world market and an opportunity for division of labor embracing all the developed and most of the undeveloped states.