Leipzig 9-14-39
Dear Bohr!
The departure of Watanabe to Denmark seems to allow one more opportunity to write to you. You Know, how sad I am about the course of events. In America we all saw it coming. I have returned back here , because I belong here. You will surely understand that. - Today I received the news that a brother of young Weizsäcker was killed in action. How much calamity is yet to come!
Since I do not know if and when fate will bring us together again, I want to thank you once more for all your friendship, for everything that I have learned from you and that you have done for me.