I came up no backstairs... Little did I think to be ever charged in this House with being the tool and abettor of secret influence. The novelty of the imputation only renders it so much the more contemptible. This is the only answer I shall ever deign to make on the subject, and I wish the House to bear it in their mind, and judge of my future conduct by my present declaration: the integrity of my own heart, and the probity of all my public, as well as my private principles, shall always be my sources of action.

Speech in the House of Commons (12 January 1784), quoted in Boyd Hilton, A Mad, Bad, and Dangerous People? England. 1783-1846 (Oxford: Clarendon Press, 2008), p. 54.