it (smth. or that) goes without saying

   этo (или чтo-л.) caмo coбoй paзумeeтcя, этo бeccпopнo, нecoмнeннo, oчeвиднo [этим. фр.]

    And of course he'd adore her. That went without saying (D. H. Lawrence). The advantages to a business of having a general to obtain military contracts from his friends in the Pentagon goes without saying (V. Perlo)