I don’t know French, although it sounds beautiful in songs.
I would definitely like to know German as there is so much
to learn in, say, Über Gewissheit. But I know some English
for practical reasons, whatever that was supposed to mean,
and my mother tongue, Polish, got a little rusty over time,
not to mention all the past failures of my own making:
Russian, Latin, Ancient Greek, and Italian. As it turned out,
devoid of willpower, curiosity ends up in wishful thinking.
But I always had the excuse that one language is enough
to say something profound, leaving the wearisome details
of translation to posterity.