Date: 1764

"His [Newton's] regulae philosophandi are maxims of common sense, and are practised every day in common life; and he who philosophizes by other rules, either concerning the material system, or concerning the mind, mistakes his aim."

— Reid, Thomas (1710-1796)

Date: 1770

"The word 'sentiment' has, of late years, been much used by some writers, to signify, not a formed opinion, notion, or principle, (which seems to be the true, and the old English sense), but an internal impulse of passion, affection, fancy, or intellect, which is to be considered rather as the ca...

— Beattie, James (1735-1803)

Date: 1777

"My father did not then perceive this; it was not till he waited on Montauban, that the force of it struck his mind."

— Mackenzie, Henry (1745-1831)

Date: 1777

"If they say, that affection is a mere involuntary impulse, neither waiting the decisions of reason, or the dissuasive of prudence, do they not in reality degrade us to machines, which are blindly actuated by some uncontrollable power?"

— Mackenzie, Henry (1745-1831)

Date: 1779

"A man's natural inclination works incessantly upon him ... The force of the greatest gravity, say the philosophers, is infinitely small, in comparison of that of the least impulse: yet it is certain, that the smallest gravity will, in the end, prevail above a great impulse; because no strokes or...

— Hume, David (1711-1776)

Date: 1789

"Far nobler prize my heart constrains, / Yielding to soft controul; / Far other beauty binds in chains / The magnet of my soul."

— Colvill, Robert (d. 1788)

Date: 1791

"In progress of time, when my mind was, as it were, strongly impregnated with the Johnsonian aether, I could with much more facility and exactness, carry in my memory and commit to paper the exuberant variety of his wisdom and wit."

— Boswell, James (1740-1795)