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Aristotle (384–322 BCE)

  • Plato's student, he endorsed a notion of absolute truth but located it in different sources than did Plato. 
    • Gave lectures on rhetoric in Plato's school (Plato likely didn't)
  • Produced the first significant codified rhetorical system
  • Set up most of the structures we still associate with rhetoric
    • Canons of rhetoric
      • Invention
      • Arrangement
      • Style
      • Memory (mostly later formalized by Cicero, only tangentially appears in Aristotle's Rhetoric although he writes about it elsewhere)
      • Delivery
    • Three branches of rhetoric:
      • forensic (legal matters, focused on determining what happened in the past)
      • deliberative (political matters, focused on determining what to do in the future)
      • epideictic (ceremonial occasions, focused on strengthening shared beliefs in the present)
    • Three sources of artistic arguments (one you have to invent):
      • Ethos (appeal to credibility)
      • Pathos (appeal to emotion)
      • Logos (appeal to reason–clearly the one Aristotle valued highest)
    • The triad of:
      • speaker
      • speech
      • audience
    • Topoi or "places" to get standard arguments 
  • Established rhetoric as the counterpart to dialectic. Dialectic could find absolute truths through the syllogism; rhetoric could find probable truths through the enthymeme
    • The enthymeme is tough to define, but posterity has tended to view it as a syllogism with a missing premise that the audience is implicitly invited to supply. 
      • So, the standard syllogism is: all men are mortal. Socrates is a man. Therefore, Socrates is mortal. 
      • An enthymeme might be: Socrates is virtuous, for he is wise. This leaves out the premise that wisdom is virtue. (Notice that the implied premise doesn't seem self-evident, and audiences can fill in the blank variably.) 
  • Admits that rhetoric can be used for good or ill, but says that is true of all things save virtue itself.

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