Here are two notable men, the Gracchi, who wished to put an end to the process of appropriation of the public land and to prevent the agglomeration of the _latifundium_, which was diminishing or causing to completely disappear the class of small proprietors, that is to say, of the free men, who are the foundation and the condition of the democratic life of the ancient city. What were the causes of their failure? Their aim is clear, their spirit, their origin, their character, their heroism are manifest. They have against them other men with other interests and with other designs. The struggle appears to the mind at first merely as a struggle of intentions and passions, which unfolds and comes to an end by the aid of means which are permitted by the political form of the state and by the use or abuse or the public powers. Here is the situation: the city ruling in different manners over other cities or over territories which have lost all character of autonomy; within this city a very decided differentiation between rich and poor; and facing the comparatively small group of the oppressors and the all-powerful, stands the immense mass of the proletarians, who are on the point of losing or who have already lost the consciousness and the political strength of a body of citizens, the mass which therefore suffers itself to be deceived and corrupted, and which will soon decay till it is but a servile accessory to its aristocratic exploiters. There is the material of the narrator, and he cannot take account of the fact otherwise than in the immediate conditions of the fact itself. The complete whole is directly seen and forms the stage on which the events unfold, but if the narration is to have solidity, vividness and perspective there must be points of departure and ways of interpretation. In this consists the first origin of those abstractions, which little by little take away from the different parts of a given social _complexus_ their quality of simple sides or aspects of a whole, and it is their ensuing generalization which little by little leads to the doctrine of factors.