Truth, Sir, is a cow which will yield such people no more milk, and so they are gone to milk the bull.
Source: Quoted in: James Boswell, Life of Samuel Johnson, 21 July 1763 (1791), said of the philosopher David Hume and other sceptical innovators.
-- Samuel Johnson, (Sep 18 1709-1784), English lexicographer, critic; He was remembered for writing the first critique of Shakespeare, 1765 and Dictionary of the English Language, 1755.