A note about voice from a fictional student:
"She [Francie] started fresh on a new page.
'Intolerance,' she wrote, pressing down hard on the pencil, 'is a thing that causes war, pogroms, crucifixions, lynchings, and makes people cruel to little children and to each other. It is responsible for most of the viciousness, violence, terror and heart and soul breaking of the world.'
She read the words over aloud. They sounded like words that came in a can; the freshness was cooked out of them. She closed the book and put it away."
A Tree Grows in Brooklyn by Betty Smith, page 229