“Letter to Frederick William, Prince of Prussia (28 November 1770). English: in S. G. Tallentyre (ed.), Voltaire in His Letters (New York: G. P. Putnam's Sons, 1919) p. 232. French: Au prince royal de prusse, le 28 novembre, in M. Palissot (ed.), Oeuvres de Voltaire: Lettres Choisies du Roi de Prusse et de M. de Voltaire, vol. II (Paris: Chez Baudoiun, 1802) p. 419”

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