Chiasmus
/kaɪˈæzməs/
Definition 1 of 1
Pro Tip 1/3Spotlight Effect
Chiasmus emphasizes contrasting ideas or concepts, highlighting differences. 
Fair is foul, and foul is fair.
Pro Tip 2/3Literary Flourish
Chiasmus is often used in literature to add poetic or dramatic effect to writing. 
Ask not what your country can do for you; ask what you can do for your country.
Pro Tip 3/3Persuasive Speech
Politicians and speakers use chiasmus to make memorable points and persuade audiences. 
We shape our buildings; thereafter, they shape us.