There is nothing more characteristic than such a description as the following, which has often been drawn up, and is yet another proof that emotion, its expressive and its physiological bases, are but parts of the same phenomenon. “He walks with head erect, with assurance; his speech is laconic and imperious, he seeks solitude, and is full of contempt for the society which surrounds him. His style of dress is in accordance with the tendency of his aberration. Like the maniac, he is restlessly active; but, in him, no movement is fortuitous or without a motive; his will is always active, his actions have a definite aim; if he shows violence, it is in order to ensure the execution of his commands, to show that he has strength sufficient to annihilate everything; it is not a destructive spirit which animates him, but the necessity for showing his power. The functions of the assimilative life have undergone no alteration; they take place, as a rule, with perfect regularity. It seems as if the expansive form of their feelings, their contentment with themselves, the extreme and unbroken satisfaction surrounding their life, imparted to the organic vital apparatus a surplus of activity, resulting, in a manner, in an excess of health.” Frequent cases of longevity among megalomaniacs have been noted. Finally, the following observation has its value, on account of the change—at once organic and psychic—there recorded:—"We have watched a patient who, after having suffered from melancholia for several years, suddenly became megalomaniac. His constitution had undergone great alterations, and his health was much weakened, so that he became a chronic melancholic; but so soon as his mental affection took on the character of megalomania he was not long in acquiring new vigour."[154] Footnote 154: Dagonet, _Traité des maladies mentales_, pp. 360 _et seq._ We might add that the tendency of men is rather to pride, of women to vanity, which favours the views of those who maintain that madness is often only the exaggeration of the habitual character: it is sufficient to have shown that the feeling (though illusory) of personal strength in an extreme degree is only the normal state amplified, but not changed. III. It may seem strange to close this chapter by some remarks on a phenomenon which, both by its internal and external characteristics, belongs to the class of irresistible tendencies—the fatal impulse to suicide. Its affinity with homicidal obsession is undeniable, as is proved by the persons who are tormented, in turn, by the craving to kill others and to kill themselves. However, if self-love, in its positive form, reaches its culminating point in megalomania, it seems to me quite legitimate to maintain that self-feeling, under its negative form, attains its supreme negation in suicide.