Antithesis-Ellipsis-Rhetorical question-Litotes
Antithesis (ænˈtɪθɪsɪs)- a rhetorical term for the juxtaposition of contrasting ideas in balanced phrases or clauses.
"Love is an ideal thing, marriage a real thing."
(Goethe)
"Everybody doesn't like something, but nobody doesn't like Sara Lee."
(advertising slogan)
"You're easy on the eyes
Hard on the heart."
(Terri Clark)
Ellipsis (ɪˈlɪpsɪs) - the omission from a sentence or other construction of one or more words that would complete orclarify the construction, as the omission of who are, while I am, or while we are from I like tointerview people sitting down.
"Prosperity is a great teacher; adversity a greater."
(William Hazlitt)
"May be", the autor had written, "the best course of action ... is doing nothing at all."
You know, after talking it over, I still can't decide ... , but I hope to make a decision soon.
Rhetorical question - a question asked merely for effect with no answer expected.
Examples:
How many roads must a man walk down, Before you call him a man...
Aren't you ashamed of yourself...
What business is it of yours? ..
Litotes - deliberate understatement, especially when expressing a thought by denying its opposite.
http://grammar.about.com/od/ab/g/antithesis.htm
http://dictionary.reference.com/browse/ellipsis