PPT Slide
Ancient & Medieval Philosophy -- David L. Rouse
SOCRATES: Thank you for the reminder. The first point, I suppose, is that a speech must begin with a preamble. You are referring, are you not, to such niceties of the art?
SOCRATES: And next comes exposition accompanied by direct evidence; thirdly, indirect evidence; fourthly, probabilities; besides which there are the proof and supplementary proof mentioned by the Byzantine master of rhetorical artifice.
PHAEDRUS:You mean the worthy Theodorus?