I don't know if this counts as spoilers for a 150 year old with countless movie/etc. adaptions, but:

There's a part later on where he joins the freemasons and as part of the initiation ceremony they're like "what's your biggest weakness?", because 19th century freemason initiation ceremonies were basically a game of truth or dare, apparently, and Pierre is like oh. hmm. all of them? can I pick all of them?