Jack

“Animals don't behave like men,' he said. 'If they have to fight, they fight; and if they have to kill they kill. But they don't sit down and set their wits to work to devise ways of spoiling other creatures' lives and hurting them. They have dignity and animality.”
― Richard Adams, Watership Down

“But would you kindly ponder this question: What would your good do if
evil didn't exist, and what would the earth look like if all the shadows
disappeared? After all, shadows are cast by things and people. Here is the
shadow of my sword. But shadows also come from trees and living beings.
Do you want to strip the earth of all trees and living things just because
of your fantasy of enjoying naked light? You're stupid.”
― Mikhail Bulgakov, The Master and Margarita

“If one cannot enjoy reading a book over and over again, there is no use in reading it at all.”
― Oscar Wilde

“Is it better for a man to have chosen evil than to have good imposed upon him?”
― Anthony Burgess, A Clockwork Orange