how does meg avoid being taken over by IT ?

She tries to recite nursery rhymes like Charles Wallace had in their encounter with the Man with the Red Eyes, and then tries to remember the Declaration of Independence. She recites the first lines - that “all men are created equal” and that they have “certain unalienable rights.” IT responds that on Camazotz, all men are equal because IT controls all their actions and thoughts so that everyone is exactly “alike.” Meg rejects this line of thinking, responding that “like and equal are not the same thing....”