~ Dickens uses dialogue, a character's actions, detail, or another character's opinion to develop the qualities  of a single character
* Mrs. Defarge is revealed in this passage as being very wise and clever. She knows how Mr. Defarge feels and knows what is best for him to be doing: '"You are fatigued," said madame, raising her glance as she knotted the money. "There are only the usual odours."' She somehow knows how he is feeling without even asking him.

* When Mr. Defarge is having second thoughts about the revolution, she is supportive and lets him know that great things take a long time: '"It does not take a long time to strike a man with Lightning," said Defarge. "How long," demanded madame, composedly, "does it take to make and store the lightning? Tell me." Defarge raised his head thoughtfully, as if there were something in that too. "It does not take a long time," said madame, "for an earthquake to swallow a town. Eh well! Tell me how long it takes to prepare the earthquake?" "A long time, I suppose," said Defarge.'

* Mrs. Defarge has a lot of strength and confidence in herself; Mr. Defarge is exhausted, but Mrs. Defarge closes up the wineshop, takes her post behind the counter, counts the money, went through the entries in the guestbook, cares for her husband, and counts the money again. This passage reveals her strong moral character.  
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