DOCS.
672,
673
DECEMBER
1918 711
involved in
writing.[2]
I
am
coming
around
February
1st in order
to
give
lectures
in
Zurich.[3]
It’s
genuinely shocking
what the
exchange
rate is
now:
according
to
the
current
rate,
the
Fr
8 000
are
14
000
M![4]
Who
knows,
one
fine
day
I
might
be faced
with the
necessity
of
leaving
here because
I
couldn’t
drum
up
the
money
for
you
otherwise.
I’ll
wait
it
out
as long as possible, though.
Because here
I
am
received
with
a
kindness that
is
truly
moving.
I have made
sure
that
this time
you’ll
receive
the
money
on
time.[5] So
don’t
worry
about
it.
I wish
you
a
Merry Christmas,
yours,
Albert.
673. To
Hermann
Weyl
Berlin, 16
December
1918
Dear Mr.
Weyl,
I
am
sending your manuscript
to
you right
away.[1]
I
can
only say
to
you
that
everyone I
have
spoken
to talks
about
your theory
with
the
deepest
respect,
from
the mathematical
point
of
view,
and
that
I
also admire it
as an
edifice of
ideas.
You do not need to
fight,
least
of
all
against
me.
It
really
is
out
of
the
question
that
I
be
angry: genuine
admiration but
disbelief,
those
are
my feelings
toward
the
subject.
With
my objection
I
wanted
to
say
(1)[2]
that the
p-additional
terms
to
the
Riemann tensor
[3]
certainly cannot
contribute
anything
toward
an
explanation
of
the
electron.
(2)
Your
equations
for
the
motion
of
the
point
are
not
gauge–
invariant,
indeed not
even coordinate-invariant,
or am
I
not
seeing
the
wood for
the
trees?[4]
I do not want to
argue
but
suggest
one more
thing
to
you.
If
you
consider it
proven
that the additional
p-terms
in
the
Riemann tensor
can
play
no
role in
the
electron
problem,[5]
then this
problem really
does
seem
to take
on a
very simple
form. In
my view,
this
is
where
you
must
set to! When
we are
together
in
Zurich
in
February[6]
we
shall
come
to
terms,
with
or
without
gauge
invariance. You
will
see
that
I
am
not
obstinate, rather, I
am
gladly
prepared
to
follow through
any
chain
of
thought.
No events
of the
day
could
distract
my
interest either
in
remote
ideas;
the
yonder
delivers
us
from
slavery
to
the
passions.[7]
In
happy anticipation of
seeing you again soon,
let this
little
be
enough;
all
technical
points
orally.
Cordial
regards,
yours,
Einstein.
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