"Now the application of this corporeal image to what passes in the mind, or to the action of the mind when we meditate on various subjects, or on many distinct parts of the same subjects and when we communicate these thoughts to one another, sometimes with greater, and sometimes with less agitation and rapidity, is obvious."
— St John, Henry, styled first Viscount Bolingbroke (1678-1751)
(Essay I, §5; vol. iii, p. 456; pp. 135-6 in reprint)
See "Letters or Essays Addressed to Alexander Pope, Esq." in the third volume of David Mallet's The Works of the Late Right Honorable Henry St. John, Lord Viscount Bolingbroke, 5 vols. (London : [s.n.], Printed in the Year 1754). <Link to ESTC><Link to ESTC>
Text from the third volume of The Works of the Late Right Honorable Henry St. John, Lord Viscount Bolingbroke, 5 vols. (Dublin: Printed by P. Byrne: 1793). <Link to Google Books>
Reading also in the 1967 reprint of The Works of Lord Bolingbroke, 4 vols. (London: Henry G. Bohn, 1844).