“Roy remembered the time he and his father had a talk about fighting. 'It's important to stand up for what's right,' Mr. Eberhardt had said, 'but sometimes there's a fine line between courage and stupidity.”

“There's a fine line between living in the moment and being downright stupid.”

“I’m proud of you, son,” he said. “I guess it has finally sunk in that it’s important to stand up for yourself in this world.”Rocky shook his head. “It’s more important to stand up for someone who can’t stand up for herself,” he had answered.Rocky Ryan speaking with his father.”

“There's a fine line between standing behind a principle and hiding behind one.”

“Another time he felt himself reenacting a conversation with father, a long talk about duty and honor and all the reasons why enlisting was the right thing to do. It was a talk they'd had several months ago, and Frank had agreed with everything his father had said, only this time Frank found himself taking a contrary opinion. What the hell's so honorable about it? Duty to whom? To myself, or the guys who would be fighting without me, or to the people here at home afraid of the Hun? Or duty to President Wilson, or to Carnegie, or to God, or to all the fallen soldiers before me, to Great-grandad Emmett and his bleached bones down at Antietam?”

“The line between confidence and arrogance is very fine, Josh,” Flamel said quietly. “And the line between arrogance and stupidity even finer. Sophie,” he added, without looking at her.”