Like all social theories, internationalism must seek its basis in the economic and technical fields; here are to be found the most profound and the most decisive factors in the development of society.

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.

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.

No state is free from militarism, which is inherent in the very concept of the sovereign state. There are merely differences of degree in the militarism of states.

Every time economic and technical development takes a step forward, forces emerge which attempt to create political forms for what, on the economic-technical plane, has already more or less become reality.

Only recently, during the nineteenth century, and then only in Europe, do we meet forms of the state which have been created by a deliberate national feeling.

Concord, solidarity, and mutual help are the most important means of enabling animal species to survive.