Olympiakos: For the modern researcher and antiquarian, "Olympiakos" is a true goldmine. It is a unique sermon-manifesto of Greek religion and art. It was delivered in Olympia during the Olympic Games of 105 AD and is one of the most important texts in the history of religions.
Dialogue between Alexander and Diogenes (On Kingship): The meeting between Alexander the Great and Diogenes was not limited to the latter's famous phrase "Don't block my sunlight"... The extensive discussion between Diogenes and Alexander the Great and Diogenes' strict criticism, through the narration of Dion, gains the timeless value of a political speech addressed to power by a man of the people.
Hunter or Euboean: "...We have twenty-four speeches of the sophist Dion, and his Euboean novel - for it is a true novel - is a work of rare grace."
C. P. Cavafy