I stayed up late last night reading “Perfectly Reasonable Deviations From The Beaten Track: The Letters Of Richard P. Feynman”, which I’ve picked in the recent Canada trip. I highly recommended it, it’s an inside view of what made one of the greatest minds of the last century. His letters to his first wife, which died of tuberculosis (and which he married after she was already sick) are heart-wrenching. His recollection of the first atomic bomb experiment is fascinating.
From a letter written to his first wife, after her death:
P.S. Please forgive me for not mailing this; I do not have your current mailing address.