"By the memory, on the contrary, that great luminary of the mind, things past are exhibited in retrospect; we have no correspondent faculty to irradiate the future: and even in matters which fall not within the reach of our memory, past events are often clearly discoverable by testimony, and by effects at present existing; whereas, we have nothing equivalent to found our arguments upon in reasoning about things to come."
— Campbell, George (1719-1796)
(I, pp. 223-4)
The Philosophy of Rhetoric. By George Campbell, 2 vols. (London: Printed for W. Strahan; and T. Cadell, 1776). <Link to ESTC>