As its title hints, the essay which follows is not the history but biographical of an idea. The idea for the book called Utopia. Like all ideas for books it was born and had its whole life span in the mind of an author. Like all such ideas it ceased to be when the printed book Utopia became a black-on-white reality. Although there is no accurate record of its birth date, it seems to have been born in the mind of Sir Thomas More. As the writer I shall have to take into account the environment in which our subject passed its life and that environment was the mind of Sir Thomas More. To establish the lineaments of the idea