I was waiting for someone to reference nihilist philosopher, Max Stirner.
Johann Kaspar Schmidt (October 25, 1806 – June 26, 1856), better known as Max Stirner, was a German philosopher. He is often seen as one of the forerunners of nihilism, existentialism, psychoanalytic theory, postmodernism, and anarchism, especially of individualist anarchism.
Stirner proposes that most commonly accepted social institutions – including the notion of State, property as a right, natural rights in general, and the very notion of society – were mere illusions, "spooks" or ghosts in the mind.
He advocated egoism and a form of amoralism, in which individuals would unite in 'unions of egoists' only when it was in their self-interest to do so. For him, property simply comes about through might: "Whoever knows how to take, to defend, the thing, to him belongs property." And, "What I have in my power, that is my own. So long as I assert myself as holder, I am the proprietor of the thing." He says, "I do not step shyly back from your property, but look upon it always as my property, in which I respect nothing. Pray do the like with what you call my property!" Stirner considers the world and everything in it, including other persons, available to one's taking or use without moral constraint – that rights do not exist in regard to objects and people at all. He sees no rationality in taking the interests of others into account unless doing so furthers one's self-interest, which he believes is the only legitimate reason for acting. He denies society as being an actual entity, calling society a "spook" and that "the individuals are its reality" (The Ego and Its Own).