Which theme is shown most clearly in this part of the story?

Sometimes I slip and say my little brother Raymond. But

as any fool can see he's much bigger and he's older too.

But a lot of people call him my little brother 'cause he

needs looking after 'cause he's not quite right. . . . If

anybody has anything to say to Raymond, anything to say

about his big head, they have to come by me. And I don't

play the dozens or believe in standing around with

somebody in my face doing a lot of talking. I much rather

just knock you down and take my chances even if I am a

little girl with skinny arms and a squeaky voice, which is

how I got the name Squeaky.

• You have to be tough to live in a big city

Being small doesn't mean you're not tough

It's important to stand up for what you believe,

When