If Britain is not really at present over-populated, the same is probably even more true of Germany. For Germany, with a larger and more fertile area in proportion to her population, is safer than we are in the matter of self-support. But again in Germany the outcry of over-population has arisen, and has arisen from the same cause as here—namely, the rise of the commercial system, the division of the nation into extremes of poverty and riches, and the consequent appearance of excess population in both directions. And this diseased state of the nation has led to a fever of “expansion” and has been (as already said) one of the chief causes of the present war. As long as the modern nations are such fools as to conduct their industrial affairs in the existing way they will not only be full of strife, disease, and discord in themselves, but they will inevitably quarrel with their neighbours.
All this, however, does not prove that a genuine over-population difficulty may not occur even now in localities, and possibly in some far future time over the whole earth. And it may be just as well to consider these possibilities.
Dismissing War and Disease as solutions—as belonging to barbarous and ignorant ages of human evolution—there remain, perhaps, three rational methods of dealing with the question: (1) the organization and improvement of industrial production on existing lands so far as to allow the support of a larger population; (2) the transport of excess populations to new and undeveloped lands (colonization); (3) the limitation of families.