„By knowing things that exist, you can know that which does not exist. That is the void.“

— Miyamoto Musashi
„He who does not know what the world is, does not know where he is. And he who does not know for what purpose the world exists, does not know who he is, nor what the world is. But he who has failed in any one of these things could not even say for what purpose he exists himself. What then dost thou think of him who [avoids or] seeks the praise of those who applaud, of men who know not either where they are or who they are?“
— Marcus Aurelius
„Such a one does not always know what he can do, but he nevertheless instinctively feels, I am good for something! My existence is not without reason!“
— Vincent Van Gogh
„Does Big Brother exist?""Of course he exists. The Party exists. Big Brother is the embodiment of the Party.""Does he exist in the same way as I exist?""You do not exist.“
— George Orwell
„You know that I could as soon forget you as my existence!“
— Emily Brontë
„How many people you know who can name every serial killer who ever existed in a row?“
— Eminem
„Winston Smith: Does Big Brother exist?O'Brien: Of course he exists.Winston Smith: Does he exist like you or me?O'Brien: You do not exist.“
— George Orwell