I thought it was related to an anecdote: Paul Dirac married "Wigner's sister". It appears a friend asked him about who the woman was and Dirac replied "This is

I thought it was related to an anecdote: Paul Dirac married "Wigner's sister". It appears a friend asked him about who the woman was and Dirac replied "This is Wigner's sister, who is now my wife." Wigner apparently called Dirac his "famous brother-in-law". Other anecdote: Oppenheimer, when recommending Feynman included a quote from Wigner on Feynman: "He is a second Dirac, only this time human." I enjoy these bits. I also enjoyed going through a graph of people as a kid in order to sleep. People as vertices and relations as edges.