Read it through once

"I thank you, ma'am, sincerely thank you," said Marianne, with warmth: "your invitation has insured my gratitude for ever, and it would give me such happiness, yes, almost the greatest happiness I am capable of, to be able to accept it. But my mother, my dearest, kindest mother,--I feel the justice of what Elinor has urged, and if she were to be made less happy, less comfortable by our absence--Oh! no, nothing should tempt me to leave her. It should not, must not be a struggle."