The document discusses and critiques the ethical theory of egoism. It defines egoism as the idea that one's own interests are most important morally. It examines different versions of egoism, including personal egoism, individual ethical egoism, and universal ethical egoism. It then outlines three common arguments for universal ethical egoism - the economist argument, Ayn Rand's argument, and the Hobbesian argument - and discusses problems with each. Overall, the document finds issues with egoism as a comprehensive moral theory.