_Fiat justitia, pereat mundus._ This saying has become proverbial, and although it savours a little of boastfulness, is also true. We may translate it thus:—“Let justice rule on earth, although all the rogues in the world should go to the bottom.” It is a good, honest principle of right cutting off all the crooked ways made by knavery or violence. It must not, however, be misunderstood as allowing anyone to exercise his own rights with the utmost severity, a course in contradiction to our moral duty; but we must take it to signify an obligation, binding upon rulers, to refrain from refusing to yield anyone his rights or from curtailing them, out of personal feeling or sympathy for others. For this end, in particular, we require, firstly, that a state should have an internal political constitution, established according to the pure principles of right; secondly, that a union should be formed between this state and neighbouring or distant nations for a legal settlement of their differences, after the analogy of the universal state. This proposition means nothing more than this:—Political maxims must not start from the idea of a prosperity and happiness which are to be expected from observance of such precepts in every state; that is, not from the end which each nation makes the object of its will as the highest empirical principle of political wisdom; but they must set out from the pure concept of the duty of right, from the “_ought_” whose principle is given _a priori_ through pure reason. This is the law, whatever the material consequences may be. The world will certainly not perish by any means, because the number of wicked people in it is becoming fewer. The morally bad has one peculiarity, inseparable from its nature;—in its purposes, especially in relation to other evil influences, it is in contradiction with itself, and counteracts its own natural effect, and thus makes room for the moral principle of good, although advance in this direction may be slow. Hence objectively, in theory, there is no quarrel between morals and politics. But subjectively, in the self-seeking tendencies of men (which we cannot actually call their morality, as we would a course of action based on maxims of reason,) this disagreement in principle exists and may always survive; for it serves as a whetstone to virtue. According to the principle, _Tu ne cede malis, sed contra audentior ito_, the true courage of virtue in the present case lies not so much in facing the evils and self-sacrifices which must be met here as in firmly confronting the evil principle in our own nature and conquering its wiles. For this is a principle far more dangerous, false, treacherous and sophistical which puts forward the weakness in human nature as a justification for every transgression.