AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Malthus TR . An Essay on the Principle of Population as it affects the future improvement of Society, with remarks on the speculations of Mr Godwin, M. Condorcet, and other writers. 1798. 1st edition.-2nd enlarged and amended edition 1803.2. Santayana G . Life of Reason. 1905: 284.
