"For everybody there is a limit where ability to learn comes to an end"
ALS in German, signed “Einstein,” one page both sides, 8.25 x 10.75, September 19, 1932. Written from his summer house in Caputh, a letter to "De Haus," in full (translated): "I thank you greatly for the letters from both of you. The happier I am to be able to pass the time so cheerfully and closely with your wife, the more it makes me sorry that you had just gone away. Ehrenfest makes me very sorry that he is so depressed through his feeling of insufficiency with regard to his post, which is objectively unjustified. I actually believe that there are a few people who will be as well orientated as he will in our 'law of the jungle' department. Still, for everybody there is a limit where ability to learn comes to an end. I find that a special teaching post for atomic mechanics would be necessary in our universities; much more necessary than a teaching post for physical chemistry. Meanwhile, I also suppose that, for the present, the shortage of funds is making the creation of a new post, even for a limited duration, extraordinarily difficult, if not impossible. I even took the trouble to try what I could, so that these objective and psychological difficulties might be removed. It is impossible for me personally to jump into this gap. First, being an old boy, I already have enough on my back, and secondly I am much too little receptively skilled to be able to be serviceable to others at this time by the transmission of bits of knowledge. I would not be able to transplant the thick Partner. Here, it is yet more difficult than with you, and I also have no kind of influence with the new 'Governors.' It is even doubtful whether I do not altogether end my connections here. In any case, I have made myself quite independent, so that I may face anything that may come here with all composure. I regret the things that have happened to me from general human standpoints; what will there be as results, if the military economy starts again here! We feel our helplessness more than ever. Still, there are still good friends and fine people, so that we can feel at home on this earth. Heart greetings to you both." In fine condition.