I was brought up to suppose that Western philosophy is just a series of footnotes to Plato — not that this led me to learn enough Greek to read him. But Hume had the taste to write in English; and everything I painfully learn nowadays seems to me a series of footnote to him, The most recent discovery was his “rules for conduct”:http://etext.library.adelaide.edu.au/h/hume/david/h92pm/chapter8.html on the Internet:
bq. Among well-bred people, a mutual deference is affected; contempt of others disguised; authority concealed; attention given to each in his turn; and an easy stream of conversation maintained, without vehemence, without interruption, without eagerness for victory, and without any airs of superiority. These attentions and regards are immediately agreeable to others, abstracted from any consideration of utility or beneficial tendencies: they conciliate affection, promote esteem, and extremely enhance the merit of the person who regulates his behaviour by them.