"It is the common doom of man that he must eat his bread by the sweat of his brow, that is, by the sweat of his body, or the sweat of his mind."
Two Letters Addressed to a Member of the Present Parliament on the Proposals for Peace with the Regicide Directory of France [Letters on a Regicide Peace]
At least 14 entries in ECCO and ESTC (1796, 1797).<br> 
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Text from <u>Select Works of Edmund Burke. A New Imprint of the Payne Edition</u>, Foreword and Biographical Note by Francis Canavan (Indianapolis: Liberty Fund, 1999). Vol. 3. &lt;<a href="http://oll.libertyfund.org/title/658">Link to OLL</a>&gt;<br>
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See also <u>Two Letters Addressed to a Member of the Present Parliament on the Proposals for Peace with the Regicide Directory of France</u> (London: Printed for F. and C. Rivington, 1796). &lt;<a href="http://books.google.com/books?id=o9RbAAAAQAAJ">Link to Google Books</a>&gt;