It's not necessary to tell all you know. It's not ladylike — in the second place, folks don't like to have someone around knowin' more than they do. … - Harper Lee

People don’t like to have somebody knowing more than they do. It aggravates them.

Folks don’t like to have somebody around knowin’ more than they do. It aggravates ‘em. You’re not gonna change any of them by talkin’ right, they’ve got to want to learn themselves, and when they don’t want to learn there’s nothing you can do but keep your mouth shut or talk their language.

Why reasonable people go stark raving mad when anything involving a Negro comes up, is something I don't pretend to understand.

"Next morning I awoke, looked out the window and nearly died of fright. My screams brought Atticus from his bathroom half-shaven.
"The world's endin', Atticus! Please do something -!" I dragged him to the window and pointed.
"No it's not," he said. "It's snowing.

As you grow older, you’ll see white men cheat black men every day of your life, but let me tell you something and don’t you forget it — whenever a white man does that to a black man, no matter who he is, how rich he is, or how fine a family he comes from, that white man is trash