Einstein, my upset stomach hates your theory [of General Relativity]—it almost hates you yourself! How am I to' provide for my students? What am I to answer to the philosophers?!!
Letter to Albert Einstein, November 24, 1919.
![Einstein, my upset stomach hates your theory [of General Relativity]—it almost hates you yourself! How am I to' provide for my students? What am I to answer to the philosophers?!!](http://cdn.quoteddaily.com/images/paul-ehrenfest/einstein-my-upset-stomach-hates-your-theory-of-general-relativityit-almost-hates-you-yourself-how-am-i-to-provide-for.jpg)