"Did this state of mind remain always so, every one would, without scruple, give it the name of perfect madness; and whilst it does last, at whatever intervals it returns, such a rotation of thoughts about the same object no more carries us forwards towards the attainment of knowledge, than getting upon a mill-horse whilst he jogs on in his circular track would carry a man a journey."
Of the Conduct of the Understanding
15 entries in ESTC (1706, 1741, 1753, 1754, 1762, 1763, 1781, 1782, 1793, 1794, 1795, 1798, 1800).<br>
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See John Locke, <u>Posthumous Works of John Locke</u> (London: Printed by W.B. for A. and J. Churchill, 1706). &lt;<a href="http://estc.bl.uk/T148785">Link to ESTC</a>&gt;&lt;<a href="http://books.google.com/books?id=o0EVAAAAQAAJ">Link to Google Books</a>&gt;<br>
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Text from <u>Some Thoughts Concerning Education and Of the Conduct of the Understanding</u>, eds. Ruth W. Grant and Nathan Tarcov (Indianapolis: Hackett Publishing Company, 1996).