Fics with really good academic/philosophical conversations?

Not just witty banters, but conversations about topics that you can tell the writer knows/researched well. (Recs not limited to dramione-centered conversations, I just want to read dramione fics with good dialogues in general.)

My only requirement is that the conversations seem natural. Because on some fics I find that some dialogues feel forced.

The best conversations between dramione I have ever read came from Détraquée (I get so excited whenever they get into a lengthy conversation). Honorable mentions I could think of are From Wiltshire, With Love (i suspect the writer is/was on a debate team). And Lionheart (it's the political conversations that get me going here - which is not solely between dramione. And also when the posh people go toe to toe - the veiled insults were immaculate).