In a speech to 100 SS generals, he spoke of the extermination of Jews. His handwritten note uses the euphemism Judenevakuierung, meaning evacuation of the Jews. However, in sound recordings of the speech, Himmler defined evacuation as extermination.
In his speech addressing the SS group leaders on October 4, 1943, while in Poznan, Himmler gave his actual thoughts and ideas of how one of his men, on the Waffen SS, should act and hate anyone who was not of their own blood. The purpose of this meeting was to act as a morale-booster for leaders of SS personnel engaged in the monstrous business of the Final Solution. During the course of his speech, Himmler made his now-infamous statement that the Final Solution was to be a never-to-be-written page in our history.
Of course, the irony in this statement is well-known in retrospect, for the Nazis did keep meticulous records of their transports and of camp prisoners, so many that even last-minute attempts at destroying those records could not obliterate the paper trail that linked them inexorably to the murders of millions of Jews and also non-Jews. The pages of history would be written, to be sure, but not in the manner intended by Heinrich Himmler and his accomplices.
Himmler: Whether nations live in prosperity or starve to death interests me only in so far as we need them as slaves for our culture; otherwise, it is of no interest to me. Whether 10,000 Russian females fall down from exhaustion while digging an anti-tank ditch interest me only in so far as the anti-tank ditch for Germany is finished ...
Himmler: I am talking about the evacuation of the Jews, the extermination of the Jewish people. It is one of those things that is easily said. "The Jewish people is being exterminated," every Party member will tell you, "perfectly clear, it's part of our plans, we're eliminating the Jews, exterminating them, a small matter ...