IIRC, he cheated on his wife with his cousin. I don't have web reference. I went to an Einstein exhibit (at the OMSI) that had a bunch of hand-written letters a

IIRC, he cheated on his wife with his cousin. I don't have web reference. I went to an Einstein exhibit (at the OMSI) that had a bunch of hand-written letters and such by him (in addition to attempting to make his theories more accessible). Though 'cheated' might be a little relative. I think that he may have just been spending a lot of time with her and writing her love-letters rather than just sleeping with her. Here are some quick links I turned up on the exhibit: http://eastpdxnews.com/general-news-features/explore-space-and-time-at-omsi%E2%80%99s-%E2%80%9Ceinstein%E2%80%9D/ http://eastpdxnews.com/general-news-features/explore-space-a... http://www.flickr.com/groups/alberteinstein/pool/tags/omsi/ http://www.flickr.com/groups/alberteinstein/pool/tags/omsi/ The Flickr link has a bunch of photos of the documents, but I don't none of them are labelled, so it may be a bit time-consuming to search for anything specific.