* Symposium: A symposium is a formal meeting or conference for discussion of a particular subject. This aligns perfectly with the sentence's description of scholars gathering to discuss ideas.
Let's look at the other options:
* Epilogue: The concluding part of a story, often a reflection on the events.
* Connotation: An idea or feeling that a word invokes in addition to its literal meaning.
* Emendation: A correction or improvement made to a text.
* Rudiment: A basic principle or element.
None of these other options fit the context of scholars gathering to discuss ideas.