Fictional

“If everyone fought for their own convictions there would be no war.”
― Leo Tolstoy, War and Peace

“Because of the self-confidence with which he had spoken, no one could tell whether what he said was very clever or very stupid.”
― Leo Tolstoy, Война и мир

“I walk around the school hallways and look at the people. I look at the teachers and wonder why they're here. If they like their jobs. Or us. And I wonder how smart they were when they were fifteen. Not in a mean way. In a curious way. It's like looking at all the students and wondering who's had their heart broken that day, and how they are able to cope with having three quizzes and a book report due on top of that. Or wondering who did the heart breaking. And wondering why.”
― Stephen Chbosky, The Perks of Being a Wallflower

“Happiness in intelligent people is the rarest thing I know.”
― Ernest Hemingway, The Garden of Eden