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: 1662, 1762

"My heart was hot within me; and while I was thus musing the fire kindled: and at the last I spake with my tongue."

— The Church of England

Date: 1765

"Modern philosophers give them other fine names and Julius Scaliger, in particular, used to call them "seeds of eternity" and also "zopyra"--meaning living fires or flashes of light hidden inside us but made visible by stimulation of the senses, as sparks can be struck by steel."

— Leibniz, Gottfried Wilhelm (1646-1716)

Date: 1766

"Considering these words, in a religious sense; that of 'fervency', seems to rise upon 'warmth'; 'warmth' implying, a flame of devotion, in opposition to coolness; 'fervency', great heat of mind, as opposed to coldness."

— Trusler, John (1735-1820)

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: 1773

"May you be enabled, by reading them frequently, to transfuse into your own breast that holy flame which inspired the writer!"

— Mulso [later Chapone], Hester (1727-1801)

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: December 10, 1774; 1775

"The mind, or genius has been compared to a spark of fire, which is smothered by a heap of fewel, and prevented from blazing into a flame: This simile which is made use of, by the younger Pliny, may be easily mistaken for argument or proof."

— Reynolds, Joshua (1723-1792)

Date: December 10, 1774; 1775

"There is no danger of the mind's being over-burthened with knowledge, or the genius extinguished by any addition of images; on the contrary, these acquisitions may be as well, perhaps better, be compared, if comparisons signified any thing in reasoning, to the supply of living embers, which will...

— Reynolds, Joshua (1723-1792)