“I brought nothing,” Shevek said. Though the suit had been bleached almost to white and bad shrunk a bit, it still fit, and the harsh familiar touch of holum-fiber cloth was pleasant. He felt like himself again. He sat down on the bed facing the doctor and said, “You see, I know you don't take things, as we do. In your world, in Urras, one must buy things. I come to your world, I have no money, I cannot buy. therefore I should bring. But how much can I bring? Clothing, yes, I might bring two suits. But food? How can I bring food enough? I cannot bring, I cannot buy. If I am to be kept alive, you must give it to me. I am an Anarresti, I make the Urrasti behave like Anarresti: to give. not to sell If you like. Of course, it is not necessary to keep me alive! I am the Beggarman, you see.”
―
Ursula K. Le Guin,
The Dispossessed: An Ambiguous Utopia