While the White Queen was trying to choose a champion, she gives Alice a choice of whether atau not she wanted to slay the Jabberwocky. What was the quote that the White Queen berkata to Alice?

It was something about how Alice couldn't live to please others, and it was her choice to slay the Jabberwocky, and if Alice chose to, she would be up there alone.
It was right before Alice runs off and right before she saw the ulat, caterpillar making its chrysalis.
Please help!