For fighting the Jews it was indispensable that we got Poland, for here in Poland lived the natural fertility of the Jewish people, it no longer existed anywhere else. Since the extermination of the Jews in Poland the Jewish future, seen purely under blood aspects, is completely over and out; for only here there were Jews who had children.The German was extracted from the Diensttagebuch pp.868-869 here.
A scan from the NARA folder containing the diary is below.
Figure 1: Rede Franks zum Abschluss des 38. Lehrganges der Schulungsburg, p.10a. Vol. 36; Tagebuch 1944 From 1 June-27 July 1944, image 98. Record Group 238: National Archives Collection of World War II War Crimes Records, Diary of Hans Frank, 1939-1945. National Archives (U.S.). Archives Unbound. Web. 7 Feb. 2017.