Litotes is a stylistic device consisting of a peculiar use of negative construction. The negation plus noun or adjective serves to establish a positive feature in a person or thing.
Antithesis emphasizes the contrast between two ideas. The structure of the phrases / clauses is usually similar in order to draw the reader's / listener's attention directly to the contrast.
Rhetorical Question a question to which the answer is obvious and therefore not expected. In reality rhetorical questions are a kind of statement.
