Countless are the species of all the Earth’s organisms, unlimited at any moment in individuals is their instinct for self preservation as well as the longing for continuance, yet the space in which the whole life process takes place is limited. The struggle for existence and continuance in life waged by billions upon billions of organisms takes place on the surface of an exactly measured sphere. The compulsion to engage in the struggle for existence lies in the limitation of the living space; but in the life struggle for this living space lies also the basis for evolution
In the times before man, world history was primarily a presentation of geological events: the struggle of natural forces with one another, the creation of an inhabitable surface on this planet, the separation of water from land, the formation of mountains, of plains, and of the seas. This is the world history of this time. Later, with the emergence of organic life, man’s interest concentrated on the process of becoming and the passing away of its thousandfold forms. And only very late did man finally become visible to himself, and thus by the concept of world history he began to understand first and foremost only the history of his own becoming, that is, the presentation of his own evolution. This evolution is characterised by an eternal struggle of men against beasts and against men themselves. From the invisible confusion of the organisms there finally emerged formations: Clans, Tribes, Folks, States. The description of their origins and their passing away is but the representation of an eternal struggle for existence.