In fact, any bodily defect that is of such a character as to impose an excessive strain on the nervous system tends to produce an asthenic condition, with accompanying apathy and indolence. And, even when the local trouble is only temporary, its disappearance is not necessarily followed, as it was in the instances just narrated, by a return to energetic, effective activity. For, in the meantime, the idler may have acquired an unconscious—or, to be more precise, a subconscious—belief that sustained exertion is and always must be beyond his powers. Thus a vicious circle is established, the belief in his incapacity causing him to act in such a way as to intensify the asthenic state, and the resultant increased feeling of debility operating, in its turn, to confirm and strengthen his erroneous belief. In other words, he is now suffering chiefly from a “fixed idea,” and his condition is that of any psycho-neurotic patient. On this point all who have made a scientific study of laziness are in substantial agreement. We must, flatly affirms the pioneer investigator Doctor Maurice de Fleury, “take the indolent for what they nearly always are—neuropaths; and neurosis for what it always is—bad habits of cerebral activity.” The longer a man has been an idler, the more deeply rooted, of course, will be his subconscious conviction that exertion is impossible to him; but, according to de Fleury and other investigators, once this conviction is broken down, he will find that he can work, and work to good purpose. The effecting of a cure, needless to say, is not always easy. It requires co-operation on the part of the patient, and on the physician’s part intelligent and sympathetic use of both physiological and psychological methods of treatment. Hygienic measures must be adopted to tone up the nervous system, to improve the circulation, the digestion, the nutrition—to develop, as far as possible, a general feeling of well-being. The idler must gradually be trained to occupy himself usefully—not, perhaps, for many hours at a time, but for regular stated periods, however short. And to this end, the effort has to be made, from the outset, to awaken in him an absorbing interest in the attainment of some one specific aim in life, thereby replacing his baneful fixed idea of incapacity for work with the opposed and beneficial obsession of something that he must and can accomplish. Here we come to what is by far the most important factor in the cure of laziness—the dynamic, regenerative power of some special interest.[2] Even your idler, enfeebled by positive organic weakness, may rise superior to himself and achieve marvels, if only his enthusiasm be sufficiently aroused to a definite end. It was thus, for example, with Charles Darwin.