"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 cause or occasion of our forming an opinion, than as the real opinion itself."
— Beattie, James (1735-1803)
(II.i.1, p. 167n)
Beattie, James. An Essay on the Nature and Immutability of Truth; in Opposition to Sophistry and Scepticism (Edinburgh: A Kincaid & J. Bell, 1770). <Link to ECCO>
Text from corrected and enlarged second edition of 1771. <Link to Google Books>