Chiasmus is a figure of speech in which words, grammatical constructions, or concepts are repeated in reverse order, in the same or a modified form. In other words, the clauses display inverted parallelism.

Examples:

1. He knowingly led and we followed blindly.

2. Swift as an arrow flying, fleeing like a hare afraid. 3. 'Bad men live that they may eat and drink,

whereas good men eat and drink that they may live.'

Socrates (fifth century B.C.).