Indeed - Candide

Voltaire, up for controversy, had a few spells in the Bastille before moving to Wandsworth, London.  He was feted by George I and met Jonathan Swift.  lived in the Prussian court of Frederic the Great. But he published Candide (or The optimist) when in Paris in 1759. 
This 'parabolic' journey through an imagined world is fascinating.  It reminded me of 'Swift' satirical writings.  It is cutting and brutal, full of wonder and coincidence.   Candide meets bonny Prince Charlie in Venice.  He ends up living a quiet (well, married) life in Istanbul.

Candide's journey around the world.
(He even speaks of traveling to China.)

Thank you for this public service.

 Pangloss- ever faithful to the doctrine of "This is the best of possible worlds", has his theories tested to the limit as events unfold, like the 'flap of a butterfly's wing' as fractured in Chaos theory.

The moral - (if there is one) - is to live as a farmer in an imperfect world with the ones you are faithful to, (even when the gloss has worn off).  For more listen to In our Time with Melvin Bragg