What conversation do Madame Sylvie and Jane have after Jane swims in the pond naked?

Madame Sylvie has Jane come to her after she gets dressed. Then Sylvie tells Jane that she must never take off her clothes in the sight of men. Jane does not understand the problem. Finally Madame Sylvie tells her that she may not understand, but she has to promise to never show her naked body in public. Jane tells her that she will not.