"When therefore the orator can obtain no direct aid from the memory of his hearers, which is rarely to be obtained, he must, for the sake of brightening, and strengthening, and, if I may be permitted to use so bold a metaphor, cementing his ideas, bespeak the assistance of experience"
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;