"But I perfectly agree with you concerning general Theories, that they are for the most part but a sort of waking Dreams, with which, when Men have warm'd their own Heads, they pass into unquestionable Truths, and then the ignorant World must be set right by them."
— Locke, John (1632-1704)
Text from Familiar Letters Between Mr. John Locke, and Several of His Friends. In Which Are Explain'd, His Notions in His Essay Concerning Human Understanding, and in Some of His Other Works, 4th ed. (London: Printed for F. Noble; T. Wright; and J. Duncan, 1742). <Link to ESTC><Link to Google Books>. ESTC note: "A reissue of the 1737 Bettesworth and Hitch edition, with the addition of the 'life', and a cancel titlepage."
See also Some Familiar Letters Between Mr. Locke, and Several of His Friends. (London: Printed for A. and J. Churchill at the Black Swan in Pater-Noster Row, 1708). <Link to ESTC><Link to Google Books>