Sigmund Freud (6 de mayo de 1856, en Příbor, Moravia, Imperio austríaco (actualmente República Checa) - 23 de septiembre de 1939, en Londres, Inglaterra, Reino Unido) fue un médico neurólogo austriaco, padre del psicoanálisis y una de las mayores figuras intelectuales del siglo XX.
Fredric Brown (October 29, 1906 – March 11, 1972) was an American science fiction and mystery writer. He was born in Cincinnati. He is perhaps best known for his use of humor and for his mastery of the "short short" form—stories of 1 to 3 pages, often with ingenious plotting devices and surprise endings. Humor and a somewhat postmodern outlook carried over into his novels as well.