Claudius ponders the puzzle, but he naturally drifts towards the personal one rather than the philosophical one. When Grantaire toasted to Enjolras, it was as their leader and the sun all their meetings wound around -- but Enjolras is so insensible of the effect he has on other people, he might not realize it.

Nevertheless, Claudius is going to tease him about it. "Enjolras," he says and smirks, "I see why you're struggling so much to express the draw of your meetings in a handbill. You were the draw. You never had to make up a schedule, or prepare discussion topics, because you inspired everyone around you with your charm and conviction to keep the conversation going."