Date: 1776

"Our sensations would be no better than the fleeting pictures of a moving object on a camera obscura, which leave not the least vestige behind them."

— Campbell, George (1719-1796)

Date: 1776

"Memory therefore is the only original voucher extant, of those past realities for which we had once the evidence of sense. Her ideas are, as it were, the prints that have been left by sensible impressions."

— Campbell, George (1719-1796)

Date: 1776

"For, with regard to the similar circumstances of different facts, as by the repetition such circumstances are more deeply imprinted, the mind acquires a habit of retaining them, omitting those circumstances peculiar to each, wherein their differences consist."

— Campbell, George (1719-1796)

Date: 1776

"Causation considered as an associating principle, is, in his theory, no more than the contiguous succession of two ideas, which is more deeply imprinted on the mind by its experience of a similar contiguity and succession of the impressions from which they are copied."

— Campbell, George (1719-1796)

Date: 1776

"These two qualities therefore, probability and plausibility, (if I may be indulged a little in the allegoric style) I shall call Sister-graces, daughters of the same father Experience, who is the progeny of Memory, the first-born and heir of Sense. These daughters Experience had by different mot...

— Campbell, George (1719-1796)

Date: 1776

"The lights of the mind are, if I may so express myself, in an opposite situation to the lights of the body."

— Campbell, George (1719-1796)

Date: 1776

"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 e...

— Campbell, George (1719-1796)

Date: 1776

"My third observation is, that pain of every kind generally makes a deeper impression on the imagination than pleasure does, and is longer retained by the memory."

— Campbell, George (1719-1796)

Date: 1776

"Thus, language and thought, like body and soul, are made to correspond, and the qualities of the one exactly to co-operate with those of the other."

— Campbell, George (1719-1796)

Date: 1776

"Sense in this passage denotes an inward feeling, or the impression which some sentiment makes upon the mind."

— Campbell, George (1719-1796)