much, and therefore in many respects false. The most prominent characteristic in which the mentally unstable contrast with the “normal” is what we may vaguely call motive. They tend to be weak in energy, and especially in persistence of energy. Such weakness may translate itself into a vague scepticism as to the value of things in general, or into a definite defect of what is popularly called will power, or into many other forms, but it is always of the same fundamental significance, for it is always the result of the thwarting of the primary impulses to action resident in herd suggestion by the influence of an experience which cannot be disregarded. Such minds cannot be stimulated for long by objects adequate to normal ambition; they are apt to be sceptical in such matters as patriotism, religion, politics, social success, but the scepticism is incomplete, so that they are readily won to new causes, new religions, new quacks, and as readily fall away therefrom.
We saw that the resistive gain in motive what they lose in adaptability; we may add that in a sense the unstable gain in adaptability what they lose in motive. Thus we see society cleft by the instinctive qualities of its members into two great classes, each to a great extent possessing what the other lacks, and each falling below the possibilities of human personality. The effect of the gradual increase of the unstable in society can be seen to a certain extent in history. We can watch it through the careers of the Jews and of the Romans. At first, when the bulk of the citizens were of the stable type, the nation was enterprising, energetic, indomitable, but hard, inelastic, and fanatically convinced of its Divine mission. The inevitable effect of the expansion of experience which followed success was that development of the unstable and sceptical which ultimately allowed the nation, no longer {60} believing in itself or its gods, to become the almost passive prey of more stable peoples.
In regard to the question of the fundamental significance of the two great mental types found in society, a tempting field for speculation at once opens up, and many questions immediately arise for discussion. Is,