Frau Förster-Nietzsche, in her biography, seeks to prove the impossible thesis that her brother, despite his constant illness, was ever well-balanced in mind. It is but fair to charge that her own evidence is against her. From his youth onward, Nietzsche was undoubtedly a neurasthenic, and after the Franco-Prussian war he was a constant sufferer from all sorts of terrible ills--some imaginary, no doubt, but others real enough. In many ways, his own account of his symptoms recalls vividly the long catalogue of aches and pains given by Herbert Spencer in his autobiography. Spencer had queer pains in his head and so did Nietzsche. Spencer roved about all his life in search of health and so did Nietzsche. Spencer's working hours were limited and so were Nietzsche's. The latter tells us himself that, in a single year, 1878, he was disabled 118 days by headaches and pains in the eyes. Dr. Gould, the prophet of eye-strain, would have us believe that both of these great philosophers suffered because they had read too much during adolescence. It is more likely, however, that each was the victim of some definite organic malady, and perhaps of more than one. In Nietzsche's case things were constantly made worse by his fondness for self-medication, that vice of fools. Preparatory to his service as a hospital steward in 1870 he had attended a brief course of first-aid lectures at the military hospital at Erlangen, and thereafter he regarded himself as a finished pathologist and was forever taking his own doses. The amount of medicine he thus swallowed was truly appalling, and the only way he could break his appetite for one drug was by acquiring an appetite for another. Chloral, however, was his favorite, and toward the end he took it daily and in staggering quantities. Meanwhile, his mental disturbances grew more and more visible. At times he would be highly excited and exalted, denouncing his foes, and proclaiming his own genius. This was his state when his friends were finally forced to put him under restraint. At other times he would show symptoms of melancholia--a feeling of isolation and friendlessness, a great sadness, a foreboding of death. The hostility with which his books were received gave sharpness and plausibility to this mood, and it pursued him through many a despairing day.