This is a forum designed for me to answer your question not to judge you; and I am pleased to provide you with the answer to your question. As you know, the novel is filled with quotes describing racism in Maycomb, Alabama, in the mid-1930s. The three quotes below are illustrative.
Scout is angry and puzzled by Cecil Jacob's comment at school that Scout's daddy defended ni_ gers. When she goes home, she asks Atticus about the comment.
__[Scout] "Then why did Cecil say you defended ni_ gers? He made it sound like you were runnin‘ a still."
__[Atticus] "...I'm simply defending a Ne_ gro—his name's Tom Robinson. He lives in that little settlement beyond the town dump. He's a member of Calpurnia's church, and Cal knows his family well. She says they're clean-living folks. Scout, you aren't old enough to understand some things yet, but there's been some high talk around town to the effect that I shouldn't do much about
defending this man..."
__[Scout] "If you shouldn't be defendin‘ him, then why are you doin' it?"
__[Atticus] "For a number of reasons...The main one is, if I didn't I couldn't hold up my head in town, I couldn't represent this county in the legislature, I couldn't even tell you or Jem not to do something again....Scout, simply by the nature of the work, every lawyer gets at least one case in his lifetime that affects him personally. This one's mine, I guess. You might hear some ugly talk about it at school, but do one thing for me if you will: you just hold your head high and keep those fists down. No matter what anybody says to you, don't you let ‘em get your goat."
The trial of Tom Robinson is underway. The prosecutor, Mr. Gilmer, asks Bob Ewell what he saw that led him to call Sheriff Tate. His description is racist to the core.
__[Bob Ewell] "Well, Mayella was raisin‘ this holy racket so I dropped m'load and run as fast as I could but I run into th' fence, but when I got distangled I run up to th‘ window and I seen—' Mr. Ewell's face grew scarlet. He stood up and pointed his finger at Tom Robinson. '—I seen that black ni_ ger yonder ruttin' on my Mayella!'"
Jem is angered and upset by the conviction of Tom Robinson. He voices his opinion as he asks Atticus questions about the jury system. One of the replies by Atticus is particularly revealing.
__[Atticus] "If you had been on that jury, son, and eleven other boys like you, Tom would be a free man...So far nothing in your life has interfered with your reasoning process. Those are twelve reasonable men in everyday life, Tom's jury, but you saw something come between them and reason. You saw the same thing that night in front of the jail. When that crew went away, they didn't go as reasonable men, they went because we were there. There's something in our world that makes men lose their heads—they couldn't be fair if they tried. In our courts, when it's a white man's word against a black man's, the white man always wins. They're ugly, but those are the facts of life."
Read your book...the question is asking YOU, for 2 quotes. The entire book has many references of racism...especially during the trail, maybe start there. Good Luck