Philip Dormer Stanhope (4th earl of Chesterfield.), Charles Caleb Colton (1861). “Lord Chesterfield's advice to his son on men and manners. To which are added, selections from Colton's 'Lacon'.”, p.184
Robert Burns (1838). “The Works of Robert Burns: With an Account of His Life, and Criticism on His Writings. To which are Prefixed, Some Observations on the Character and Condition of the Scottish Peasantry”, p.40