Robert Burns Quotes about Laughter

Robert Burns (1825). “The Complete Works of Robert Burns: Containing His Poems, Letters, Songs, His Letters to Clarinda, and the Whole of His Suppressed Poems: with an Essay on His Life, Genius, and Character [signed: J. B.]. MS. Notes”, p.440
Robert Burns, P. Austin Nuttall (1866). “The poetical works of Robert Burns”, p.92
'Epistle to a Young Friend' (1786) st. 9