For of the three elements in speech-making -- speaker, subject, and person addressed -- it is the last one, the hearer, that determines the speech's end and object. [1358b] The hearer must be either a judge, with a decision to make about things past or future, or an observer. A member of the assembly decides about future events, a juryman about past events: while those who merely decide on the orator's skill are observers. From this it follows that there are three divisions of oratory-(1) political, (2) forensic, and (3) the ceremonial oratory of display.