"You should therefore contrive and practice some proper Methods to acquaint yourself with your own Ignorance, and to impress your Mind with a deep and painful sense of the low and imperfect Degrees of your present Knowledge, that you may be incited with Labour and Activity to pursue after greater Measures. Among others you may find some such Methods as these successful."
— 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>