El único y su propiedad
Sidney Parker, also known as S. E. Parker, (9 November 1929 – December 2012) was a British egoist and a former individualist anarchist who wrote articles and edited several journals from 1963–1993. Notably Parker wrote the introductions to the books "Might is Right" (Loompanics Unlimited, 1984) and "The Ego and Its Own" (Rebel Press, 1982) by Max Stirner.