Date: 1761

"It is not the soft power of humanity, it is not that feeble spark of benevolence which Nature has lighted up in the human heart, that is thus capable of counteracting the strongest impluses of self-love."

— Smith, Adam (1723-1790)

Date: 1770

"The captious turn of an habitual wrangler deadens the understanding, sours the temper, and hardens the heart: by rendering the mind suspicious, and attentive to trifles, it weakens the sagacity of instinct, and extinguishes the fire of imagination; it transforms conversation into, a state of war...

— Beattie, James (1735-1803)

Date: 1774

"When an ingenious track of thinking presents itself, though but casually, to true genius, occupied it may be with something else, imagination darts alongst it with great rapidity; and by this rapidity its ardor is more inflamed. The velocity of its motion sets it on fire, like a chariot wheel wh...

— Gerard, Alexander (1728-1795)

Date: 1774

"It is enraptured by every striking form, it fills the soul with high enthusiasm, it sets the fancy on fire, it pushes it forward with impetuosity, renders all its conceptions glowing, and bestows a freedom and becoming negligence on its productions."

— Gerard, Alexander (1728-1795)

Date: 1776

"But who that has the least spark of imagination, sees not how languid the latter expression is, when compared with the former."

— Campbell, George (1719-1796)

Date: w. 1755, 1777

"But admitting a spiritual substance to be dispersed throughout the universe, like the ethereal fire of the Stoics, and to be the only inherent subject of thought, we have reason to conclude from analogy, that nature uses it after the same manner she does the other substance, matter."

— Hume, David (1711-1776)

Date: 1791

"If you can but kindle in your mind any strong desire, if you can but keep predominant any wish for some particular excellence or attainment, the gusts of imagination will break away, without any effect upon your conduct, and commonly without any traces left upon the memory."

— Boswell, James (1740-1795)