This is the distinction between the kleptomaniac and the thief: the former steals by instinct, to steal; the latter steals by interest, to acquire: the first is led away by anything that strikes him; the second is attracted by the value of the object. Dominated by his senses, Rousseau never knew how to resist them. The most insignificant pleasure, he says, so long as it was present, fascinated him more than all the joys of Paradise. In fact, a monk’s dinner (Father Pontierre) led him to apostasy, and a feeling of repulsion caused him to abandon cruelly an epileptic friend on the road. It was not only his passions that were morbid and violent; his intelligence also was affected from his earliest days, as he shows in his _Confessions_: “My imagination has never been so cheerful as when I have been suffering. My mind cannot beautify the really pleasant things that happen to me, only the imaginary ones. If I wish to describe spring well, it must be in winter.” Real evils had little hold on Rousseau, he tells us; imaginary evils touched him more nearly. “I can adapt myself to what I experience, but not to what I fear.” It is thus that people kill themselves through fear of death. On first reading medical books Rousseau imagined that he had the diseases which he found described, and was astonished, not to find himself healthy, but to find himself alive. He came to the conclusion that he had a polypus at the heart. It was, as he himself confesses, a strange notion, the overflow of an idle and exaggerated sensibility which had no better channel. “There are times,” he says, “in which I am so little like myself that I might be taken for a man of quite different character. In repose I am indolence and timidity itself, and do not know how to express myself; but if I become excited I immediately know what to say.” This unfortunate man went through a long series of occupations from the noblest to the most degrading; he was an apostate for money, a watchmaker, a charlatan, a music-master, an engraver, a painter, a servant, an embryo diplomatic secretary; in literature and science he took up medicine, music, botany, theology, teaching.