Full Idea
Epicurus identifies our final end with what he calls tranquillity or 'ataraxia', which is static pleasure.
Gist of Idea
The end for Epicurus is static pleasure
Source
report of Epicurus (fragments/reports [c.289 BCE]) by Julia Annas - The Morality of Happiness Ch.7
Book Reference
Annas,Julia: 'The Morality of Happiness' [OUP 1995], p.188
A Reaction
I don't recall any Greek ever spotting that boredom is a problem. But then they didn't have privacy, so other people always hold their attention. Maybe this is a dream of privacy.