What words does Liesel choose to quote from Max's own writings? What is max's reaction to those words?

When Liesel sees Max being marched through Dachau, she tries to hold onto him. Max warns her that she needs to relaease him, but before she does, Liesel is grabbed by a soldier and thrown to the ground. She then gets up, running back to Max and repeating the words "The Word Shaker" and "The Standover Man." Max responds to Liesel's words by embracing her.

“Max,” she said. He turned and briefly closed his eyes as the girl continued. “ ‘There was once a strange, small man,’ ” she said. Her arms were loose but her hands were fists at her side. “But there was a word shaker, too.”
One of the Jews on his way to Dachau had stopped walking now.
He stood absolutely still as the others swerved morosely around him, leaving him completely alone. His eyes staggered, and it was so simple. The words were given across from the girl to the Jew. They climbed on to him.
The next time she spoke, the questions stumbled from her mouth. Hot tears fought for room in her eyes as she would not let them out. Better to stand resolute and proud. Let the words do all of it. “ ‘Is it really you? the young man asked,’ ” she said. “ ‘Is it from your cheek that I took the seed?’ ”
Max Vandenburg remained standing.
He did not drop to his knees.
People and Jews and clouds all stopped. They watched.
As he stood, Max looked first at the girl and then stared directly into the sky who was wide and blue and magnificent. There were heavy beams—planks of sun—falling randomly, wonderfully to the road. Clouds arched their backs to look behind as they started again to move on. “It’s such a beautiful day,” he said, and his voice was in many pieces. A great day to die. A great day to die, like this.
Liesel walked at him. She was courageous enough to reach out and hold his bearded face. “Is it really you, Max?”
Such a brilliant German day and its attentive crowd.
He let his mouth kiss her palm. “Yes, Liesel, it’s me,” and he held the girl’s hand in his face and cried onto her fingers. He cried as the soldiers came and a small collection of insolent Jews stood and watched.
Standing, he was whipped.