"Whatsoever Improvements arise to the Mind of Man from the wise Exercise of his own reasoning Powers, these may be called his proper Manufactures; and whatsoever he borrows from Abroad these may be termed his foreign Treasures: both together make a wealthy and happy Mind."
— Watts, Isaac (1674-1748)
Most text drawn from Google Books. See The Improvement of the Mind: or, a Supplement to the Art of Logick: Containing a Variety of Remarks and Rules for the Attainment and Communication of Useful Knowledge, in Religion, in the Sciences, and in Common Life. By I. Watts, D.D. (London: Printed for James Brackstone, at the Globe in Cornhill, 1741). <Link to ESTC><Link to 2nd edition in Google Books>