Hey! First post...
I would like to read some serious HC philosophy about happiness. Not any modern self-help guides, but some serious shit. I was mostly thinking about classic Plato, Aristotle, Epicurus etc. but anything else including Asian stuff etc. is totally fine too - as long as it truly tackles the most profound questions of happiness. For example, The Republic does that quite much even though it's not directly about happiness.
So suggest any definitive philosophical books about happiness! What is it, how to achieve it, how does it relate to contentment and so on.