The foregoing conceptions are too novel as yet to have modified the mentality of the historians. They will continue to attempt to explain, by means of rational logic, a host of phenomena which are foreign to it. Events such as the Reformation, which overwhelmed France for a period of fifty years, were in no wise determined by rational influences. Yet rational influences are always invoked in explanation, even in the most recent works. Thus, in the General History of Messrs. Lavisse and Rambaud, we read the following explanation of the Reformation:-- ``It was a spontaneous movement, born here and there amidst the people, from the reading of the Gospels and the free individual reflections which were suggested to simple persons by an extremely pious conscience and a very bold reasoning power.'' Contrary to the assertion of these historians, we may say with certainty, in the first place, that such movements are never spontaneous, and secondly, that reason takes no part in their elaboration. The force of the political and religious beliefs which have moved the world resides precisely in the fact that, being born of affective and mystic elements, they are neither created nor directed by reason. Political or religious beliefs have a common origin and obey the same laws. They are formed not with the aid of reason, but more often contrary to all reason. Buddhism, Islamism, the Reformation, Jacobinism, Socialism, &c., seem very different forms of thought. Yet they have identical affective and mystic bases, and obey a logic that has no affinity with rational logic. Political revolutions may result from beliefs established in the minds of men, but many other causes produce them. The word discontent sums them up. As soon as discontent is generalised a party is formed which often becomes strong enough to struggle against the Government. Discontent must generally have been accumulating for a long time in order to produce its effects. For this reason a revolution does not always represent a phenomenon in process of termination followed by another which is commencing but rather a continuous phenomenon, having somewhat accelerated its evolution. All the modern revolutions, however, have been abrupt movements, entailing the instantaneous overthrow of governments. Such, for example, were the Brazilian, Portuguese, Turkish, and Chinese revolutions. To the contrary of what might be supposed, the very conservative peoples are addicted to the most violent revolutions. Being conservative, they are not able to evolve slowly, or to adapt themselves to variations of environment, so that when the discrepancy becomes too extreme they are bound to adapt themselves suddenly. This sudden evolution constitutes a revolution.