ABSTRACT
The process that Nature has been able to discover for the amelioration of species is to bring into the world far more creatures than she is able to nourish, and to establish between them a perpetual struggle in which only the strongest and the best adapted can survive. This conflict takes place not only between the different species, but also between the individuals of the same species, and it is often between the latter that it is most violent. The struggle that Nature enforces on her creatures is universal arid constant. Made inevitable by the irresistible laws of Nature, aggravated by the new conditions of civilisation, by the miscomprehension which dominates the reciprocal relations of the classes. It includes by the increasing divergency of their interests, the conflict of the classes is destined to become more violent than it has ever been at any period of the world's history.
