Jack

“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 only it were all so simple! If only there were evil people somewhere insidiously committing evil deeds, and it were necessary only to separate them from the rest of us and destroy them. But the line dividing good and evil cuts through the heart of every human being. And who is willing to destroy a piece of his own heart?”
― Aleksandr Solzhenitsyn, The Gulag Archipelago 1918–1956

“You," he said, "are a terribly real thing in a terribly false world, and that, I believe, is why you are in so much pain.”
― Emilie Autumn, The Asylum for Wayward Victorian Girls

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