From 1941-44 a record was kept of Hitler's informal conversational monologues that usually took place at the meal table. The transcripts of these speeches were prepared for publication by Martin Bormann who believed that they would prove an invaluable record of the philosophy that lay behind the German conquests. These speeches cover a wide range of subjects, from Christianity to Wagner, from marriage to Stalin. According to Hugh Trevor-Roper, these talks clearly show the workings of Adolf Hitler's mind in all its coarseness, triviality and crudity and indicate how an array of arbitrary facts were compounded to form the basis of a rigid but powerful philosophy. A slightly different selection of speeches was originally published as "Hitlers Tischengesprache".