Since this supplementary paperback includes only select portions of
Volume 10, it is not recommended for purchase without the main volume
https: //press.princeton.edu/titles/8331.html.
The first half of this volume presents a substantial amount of
heretofore unavailable correspondence. From among family letters closed
for twenty years after the death of Margot Einstein, who donated them to
the Albert Einstein Archives in Jerusalem, the volume presents, for the
first time, letters written by Einstein's sons, the adolescent Hans
Albert and little Eduard, and numerous letters written by Einstein to
his cousin and future second wife Elsa Einstein. Combined with newly
available correspondence with his close friend Heinrich Zangger, this
supplementary correspondence provides vivid and intimate details of
Einstein's private life. It documents the emotional bonds to his family
and friends; the severe deprivations caused by the war to family members
in Berlin and Zurich; the fragile health of Mileva Einstein-Maric during
these years of separation and divorce; the worries and joys of caring
for the sons; and Einstein's views on German and international politics
during this turbulent period.
The second half finds Einstein full of optimism about Germany's new
democracy. He vigorously promotes general relativity and the endeavors
of other scientists toward its further confirmation. He responds to the
rising interest in his work among philosophers, as attested by
correspondence with M. Schlick, H. Reichenbach, R. Carnap, E. Cassirer,
and H. Vaihinger. And yet he is embroiled in vociferous, politically
tinged, public attacks on his theory of relativity. He considers leaving
Berlin, which would have deprived the Weimar Republic of its most famous
scientist. In many letters, colleagues, friends, and unknown admirers
offer support. Einstein travels to Leyden, where he is appointed a
visiting professor and where, in the circle of friends such as P.
Ehrenfest, H. A. Lorentz, and H. Kamerlingh Onnes, he is involved in
lively debates on issues related to quantum physics. He visits Oslo and
Copenhagen, where he meets with N. Bohr, and receives invitations to the
United States, anticipating his first visit to the New World in 1921.
