For those who do not like this method, there is another: the study of scientific psychology and physiology. The physiological causes of emotions have begun to be known, through the studies of such men as Cannon (_Bodily Changes in Pain, Hunger, Fear and Rage_). In time, it may become possible, by physiological means, to alter the whole emotional nature of a population. It will then depend upon the passions of the rulers how this power is used. Success will come to the State which discovers how to promote pugnacity to the extent required for external war, but not to the extent which would lead to domestic dissensions. There is no method by which it can be insured that rulers shall desire the good of mankind, and therefore there is no reason to suppose that the power to modify men's emotional nature would cause progress. If men desired to diminish rivalry, there is an obvious method. Habits of power intensify the passion of rivalry; therefore a State in which power is concentrated will, other things being equal, be more bellicose than one in which power is diffused. For those who dislike wars, this is an additional argument against all forms of dictatorship. But dislike of war is far less common than we used to suppose; and those who like war can use the same argument to support dictatorship. III BOLSHEVIK CRITICISM OF DEMOCRACY The Bolshevik argument against Parliamentary democracy as a method of achieving Socialism is a powerful one. My answer to it lies rather in pointing out what I believe to be fallacies in the Bolshevik method, from which I conclude that no swift method exists of establishing any desirable form of Socialism. But let us first see what the Bolshevik argument is. In the first place, it assumes that those to whom it is addressed are absolutely certain that Communism is desirable, so certain that they are willing, if necessary, to force it upon an unwilling population at the point of the bayonet. It then proceeds to argue that, while capitalism retains its hold over propaganda and its means of corruption, Parliamentary methods are very unlikely to give a majority for Communism in the House of Commons, or to lead to effective action by such a majority even if it existed. Communists point out how the people are deceived, and how their chosen leaders have again and again betrayed them. From this they argue that the destruction of capitalism must be sudden and catastrophic; that it must be the work of a minority; and that it cannot be effected constitutionally or without violence. It is therefore, in their view, the duty of the Communist party in a capitalist country to prepare for armed conflict, and to take all possible measure for disarming the bourgeoisie and arming that part of the proletariat which is willing to support the Communists.