This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
A little, upright, pert, tart, tripping wight,
And still his precious self his dear delight;
Who loves his own smart shadow in the streets
Better than e'er the fairest she he meets;
A man of fashion too, he made his tour,
Learn'd vive la bagatelle, et vive l'amour;
So travel'd monkeys their grimace improve,
Polish their grin, nay, sigh for ladies' love.
Much specious lore, but little understood;
Veneering oft outshines the solid wood:
His solid sense—by inches you must tell,
But mete his cunning by the old Scots ell;
His meddling vanity, a busy fiend,
Still making work his selfish craft must mend.