Date: 1750

"A mind in wisdom old, in lenience young, / From fervent truth where every virtue sprung; / Where all was real, modest, plain, sincere; / Worth above show, and goodness unsevere: / View'd round and round, as lucid diamonds throw / Still as you turn them a revolving glow, / So did his mind reflect...

— Thomson, James (1700-1748)

Date: 1751, 1777

"And, indeed, without such a correction of appearances, both in internal and external sentiment, men could never think or talk steadily on any subject; while their fluctuating situations produce a continual variation on objects, and throw them into such different and contrary lights and positions."

— Hume, David (1711-1776)

Date: 1751, 1777

"They [cruel ideas] still haunt his solitary hours, damp his most aspiring thoughts, and show him, even to himself, in the most contemptible and most odious colours imaginable."

— Hume, David (1711-1776)

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: 1769

"The first reverend sage who delivered himself on this mysterious subject, having stroked his grey beard, and hemmed thrice with great solemnity, declared that the soul was an animal; a second pronounced it to be the number three, or proportion; a third contended for the number seven, or harmony;...

— Smollett, Tobias (1721-1777)

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)