Aristophanes checks in

The Big A gets after Cleon in The Knights:

• A demagogue must be neither an educated nor an honest man; he has to be an ignoramus and a rogue.
• Mix and knead together all the state business as you do for your sausages. To win the people, always cook them some savoury that pleases them. Besides, you possess all the attributes of a demagogue; a screeching, horrible voice, a perverse, crossgrained nature and the language of the market-place. In you all is united which is needful for governing.
• You [demagogues] are like the fishers for eels; in still waters they catch nothing, but if they thoroughly stir up the slime, their fishing is good; in the same way it's only in troublous times that you line your pockets.

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