Henry St John, 1st Viscount Bolingbroke
Lord Bolingbroke's Philosophical Works http://books.google.com/books?id=E6ATAAAAQAAJ (1754) Vol.III, Essay IV, Sect XVI
Henry St John, vicomte Bolingbroke, né le 16 septembre 1678 à Battersea et mort le 12 décembre 1751, est un homme politique et philosophe britannique. Wikipedia

Henry St John, 1st Viscount Bolingbroke
Lord Bolingbroke's Philosophical Works http://books.google.com/books?id=E6ATAAAAQAAJ (1754) Vol.III, Essay IV, Sect XVI
Henry St John, 1st Viscount Bolingbroke
Some Reflections on the Present State of the Nation (1753)
“They (Thucydides and Xenophon) maintained the dignity of history.”
Henry St John, 1st Viscount Bolingbroke
On the Study and Use of History, letter 5 (1752); compare Henry Fielding, Tom Jones, book xi. chap. ii.; Horace Walpole, Advertisement to Letter to Sir Horace Mann; Thomas Babington Macaulay, History of England, vol. i. chap. i.
Henry St John, 1st Viscount Bolingbroke
Letter to Alexander Pope; compare: "Slave to no sect, who takes no private road, But looks through Nature up to Nature’s God", Alexander Pope, Essay on Man, epistle iv. line 331.
Henry St John, 1st Viscount Bolingbroke
On the Study and Use of History, letter 2; in fact this relates to a third-century CE treatise on rhetoric, wrongly attributed to Dionysius of Halicarnassus, which says (xi. 2): "The contact with manners then is education; and this Thucydides appears to assert when he says history is philosophy learned from examples". The line is not found in Thucydides.
Henry St John, 1st Viscount Bolingbroke
As quoted in Treasury of Wisdom, Wit and Humor, Odd Comparisons and Proverbs (1891) by Adam Woolever
“Nations, like men, have their infancy.”
Henry St John, 1st Viscount Bolingbroke
On the Study and Use of History, letter 4 (1752)
Henry St John, 1st Viscount Bolingbroke
Letter to Mr. Drummond (10 November 1710), quoted in Gilbert Parke, Letters and Correspondence, Public and Private, of The Right Honourable Henry St. John, Lord Visc. Bolingbroke; during the Time he was Secretary of State to Queen Anne; with State Papers, Explanatory Notes, and a Translation of the Foreign Letters, &c.: Vol. I (1798), pp. 16–17