I've never read that one, either. Somehow it's never really appealed to me much - the length, the depressing content - but I suppose at some point I should read it.

Tartuffe, or Molière's work in general really, is something else I've not read but don't seem to have too much interest in reading. No doubt I'm doing it an injustice, but I'd rather read more Racine.

Reading Kafka in German is not a bad idea, though... I do want to read more in German, it's just most German classics seem so tiresome. But I might read Kafka.

Nice. I'll be happy if I can get my Arabic reading to some level of proficiency, myself, one classical language (plus what I remember of Greek and Latin, but that isn't enough to read books) is plenty for me. Though I certainly should read some of those works, even if isn't in the original language, or at least not entirely - I might take a look at, for instance, Song of Songs in the Hebrew version alongside the translation, and same with Greek and Latin poetry, but not entire Bible books or classical history (currently reading Suetonius' Twelve Caesars, but in translation).

But yeah, it's true of course that if you want to maintain your proficiency in any given language, it takes some effort.