Date: 1751

"His mind does not receive the impression of the moral world, in the same manner, as wax receives the impression of a seal. It does not reflect the image of it, in the same manner, as a mirror reflects its images: it has a peculiar cast and turn given to its conceptions, admirably ordered to exal...

— Home, Henry, Lord Kames (1696-1782)

Date: 1751

"But this discovery is by no means confined to colours as they exist out of the mind, either in the rays of light, or surfaces of bodies; but is equally true of the ideas of colours in the mind itself: for it appears, by experiments, that the idea of red and the idea of yellow, confounded in the ...

— Whytt, Robert (1714-1766)

Date: 1759

"Unfortunately this moral looking-glass is not always a very good one. Common looking-glasses, it is said, are extremely deceitful, and by the glare which they throw over the face, conceal from the partial eyes of the person many deformities which are obvious to every body besides. But there is n...

— Smith, Adam (1723-1790)

Date: 1759

"Bring him into society, and he is immediately provided with the mirror which he wanted before. It is placed in the countenance and behaviour of those he lives with, which always mark when they enter into, and when they disapprove of his sentiments; and it is here that he first views the propriet...

— Smith, Adam (1723-1790)

Date: 1764

"Such principles are parts of our constitution, no less than the power of thinking: reason can neither make nor destroy them; nor can it do any thing without them: it is like a telescope, which may help a man to see farther, who hath eyes; but without eyes, a telescope shows nothing at all."

— Reid, Thomas (1710-1796)

Date: 1770

"A metaphysician, exploring the recesses of the human heart, hath just such a chance for finding the truth, as a man with microscopic eyes would have, for, finding the road."

— Beattie, James (1735-1803)

Date: September, 1770

"This double feeling is of various kinds and various degrees; some minds receiving a colour from the objects around them, like the effects of the sun beams playing thro' a prism; and others, like the cameleon, having no colours of their own, take just the colours of what chances to be nearest them."

— Boswell, James (1740-1795)

Date: 1774

"Like a mirrour, it [memory] reflects faithful images of the objects formerly perceived by us, but can exhibit no form with which it is not in this manner supplied. It is in its nature a mere copier; it preserves scrupulously the very position and arrangement of the original sensations, and gives...

— Gerard, Alexander (1728-1795)

Date: 1774

"He magnifies all her real perfections in his imagination, and is either blind to her failings, or converts them into beauties."

— Gregory, John (1724-1773)

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)