3. What is the value of grandiose ideas? Ballet distinguishes two groups of grandiose ideas: (_a_) ideas of self-satisfaction, including ideas concerning extraordinary capacity, strength, power, and wealth on the part of the patient; and (_b_) ideas of ambition; the latter being of a more exact, constant, uniform and systematizing nature. The more vague and less systematized ideas of self-satisfaction rest in a phase of contentedness and optimism; the more definite ideas of pride and ambition are responsible for striking transformations of personality. General paresis shows, according to Ballet, these ideas of self-satisfaction in their most developed form. A certain variability, absurdity, incoherence, and contradictoriness characterize these ideas and the patient has little or no insight into their nature. When such ideas occur at the outset of the disease, they naturally may be of medicolegal interest. Cotard explains these ideas of megalomania on the part of paretics on the ground that they are essentially motor or will disorders and rest upon a sort of hyperbulia, exhibiting itself in exuberant activity. Régis has thought that the delusional generosity and liberality of the paretic, and his willingness to lend his wealth and talents to social progress, is helpful for diagnosis when contrasted with the more personal egoism of the victim of manic-depressive psychosis. The self-satisfaction of the manic-depressive patient often does not reach a delusional stage, but remains a mere feeling of pathological well-being or euphoria. The maniacal patient may compare himself with some great man but he does not identify himself with him. It must be remembered that these ideas of self-satisfaction occur also in alcoholism, but according to Ballet they occur only in the dementing phase of chronic alcoholism, and have no special diagnostic value. They may be a clinical stumbling-block for a time in the cases of alcoholic pseudoparesis. As for the ideas of ambition in which the patients believe themselves to be princes, emperors, divine messengers, and the like, these are less characteristic of paretic neurosyphilis than of delusional psychoses of a non-syphilitic nature. At all events, such ideas if definite, of long-standing, and systematized by the patient to form a thorough-going portion of his life, are not characteristic of neurosyphilis. The victim of paretic neurosyphilis can as a rule be persuaded out of his delusions, at least for the time being. These distinctions, it must be added, are hardly of value in the early cases of any of the psychoses in question, and cannot be made as a rule in either private or psychopathic hospital practice. Typical examples of grandiosity,