"A rich man cannot enjoy a sound mind nor a sound body without exercise and abstinence; and yet these are truly the worst ingredients of poverty."

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Used with due abstinence, hope acts as a healthful tonic; intemperately indulged, as an enervating opiate. The visions of future triumph, which at first animate exertion, if dwelt upon too intently, will usurp the place of the stern reality; and, noble objects will be contemplated, not for their own inherent worth, but on account of the day-dreams they engender. Thus hope, aided by imagination, makes one man a hero, another a somnambulist, and a third a lunatic; while it renders them all enthusiasts.

— James Fitzjames Stephen