"Knowledge, the object of the intellect,  furnisheth materials for the fancy; the fancy culls, compounds, and, by her mimic art, disposes these materials so as to affect the passions; the passions are the natural spurs to volition or action, and so need only to be right directed."
The Philosophy of Rhetoric
Only 1 entry in ESTC (1776).<br>
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<u>The Philosophy of Rhetoric. By George Campbell</u>, 2 vols. (London: Printed for W. Strahan; and T. Cadell, 1776). &lt;<a href="http://estc.bl.uk/T145750">Link to ESTC</a>&gt;