1 9 4 D O C U M E N T S 1 7 6 , 1 7 7 J A N U A R Y 1 9 2 6 Best regards, your A. Einstein Please talk to Weizmann about your employment agreement, so it can be pre- pared in advance of the next meeting of the Board of Governors.[10] 176. To Moritz Schlick [Berlin,] 22 January 1926 Dear Mr. Schlick, Despite being overloaded with all conceivable obligations, I could not miss out on dedicating a few words to Mach on this occasion, which I am enclosing for you.[1] If the article seems unsuitable to you due to its brevity or due to its criticism,[2] send it back to me. Hopefully, something will work out with Reichenbach [3] if not, I will have a try in North America. It is touching of Planck, who is developing so much objectivity, even though his heart is not in it.[4] Kind regards, your A. Einstein 177. To Erwin Schrödinger [Berlin,] 22 January [1926] Dear Colleague, Your letter just arrived.[1] You are entirely right about Planck’s account. The de- termination of the weights remains tricky in many cases, and it often depends on the choice of the quantum states too. No fiddling and tampering can improve it. Ev- erything went smoothly and properly with your paper. With this postcard you are receiving the printer’s proofs.[2] I would have written to you long ago, but I am al- ways in a horrendous rush. Kind regards, your A. Einstein 178. From Arthur S. Eddington [Cambridge,] 22 January 1926 [See documentary edition for English text.]