This may be expressed in the following maxim:—“Seek ye first the kingdom of pure practical reason and its righteousness, and the object of your endeavour, the blessing of perpetual peace, will be added unto you.” For the science of morals generally has this peculiarity,—and it has it also with regard to the moral principles of public law, and therefore with regard to a science of politics knowable _a priori_,—that the less it makes a man’s conduct depend on the end he has set before him, his purposed material or moral gain, so much the more, nevertheless, does it conform in general to this end. The reason for this is that it is just the universal will, given _a priori_, which exists in a people or in the relation of different peoples to one another, that alone determines what is lawful among men. This union of individual wills, however, if we proceed consistently in practice, in observance of the mechanical laws of nature, may be at the same time the cause of bringing about the result intended and practically realizing the idea of right. Hence it is, for example, a principle of moral politics that a people should unite into a state according to the only valid concepts of right, the ideas of freedom and equality; and this principle is not based on expediency, but upon duty. Political moralists, however, do not deserve a hearing, much and sophistically as they may reason about the existence, in a multitude of men forming a society, of certain natural tendencies which would weaken those principles and defeat their intention. They may endeavour to prove their assertion by giving instances of badly organised constitutions, chosen both from ancient and modern times, (as, for example, democracies without a representative system); but such arguments are to be treated with contempt, all the more, because a pernicious theory of this kind may perhaps even bring about the evil which it prophesies. For, in accordance with such reasoning, man is thrown into a class with all other living machines which only require the consciousness that they are not free creatures to make them in their own judgment the most miserable of all beings.