Chapter V, Footnote #06
No pains proper of novelty or wealth
The pleasures of novelty have no positive pains corresponding to them. The pain which a man experiences when he is in the condition of not knowing what to do with himself, that pain, which in French is expressed by a single word ennui, is a pain of privation: a pain resulting from the absence, not only of all the pleasures of novelty, but of all kinds of pleasure whatsoever.
The pleasures of wealth have also no positive pains corresponding to them: the only pains opposed to them are pains of privation. If any positive pains result from the want of wealth, they are referable to some other class of positive pains; principally to those of the senses. From the want of food, for instance, result the pains of hunger; from the want of clothing, the pains of cold; and so forth.