In the Iliad and the Odyssey he was the wise, old, boastful man who fought on the side of the Achaeans (a.k.a. Greeks) in the Trojan war.
(Chapter 2 Joyce's Ulysses is called thus).
► uses
Uses:
To-day, if we were Polynesians, Gladstone would be no more heard of. We should speak of and address our Nestor as the Grand Old Man, and it is so that himself would sign his correspondence.
Robert Louis Stevenson. In the South Seas (1896)
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“On my word,” said Franz, “you are as wise as Nestor and prudent as Ulysses, and your fair Circe must be very skilful or very powerful if she succeed in changing you into a beast of any kind.”
Alexandre Dumas. The Count of Monte-Cristo (1844)
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First go to Pylos and ask Nestor; thence go on to Sparta and visit Menelaus, for he got home last of all the Achaeans; if you hear that your father is alive and on his way home, you can put up with the waste these suitors will make for yet another twelve months.
Homer. The Odyssey (Butler Translation)
Nestor is mentioned 39 times in The Odyssey
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Vlysses, Nestor, Diomed, went as spies together in the night into the tentes of Rhosus and intercepted Dolon the spie of the Troians: neuer anie discredited the trade of intelligencers but Iudas, & he hanged himselfe.