DOCS.
87,
88
MAY-JUNE
1915 103
This
magnetic experiment,
for
ex.,
could have been done
by any
old lout.
But
general
relativity is
of
another
kind.
Having
actually
arrived at
this
goal
gives me
the
greatest
satisfaction
of
my
life, even
though
up
to
now
not
a single colleague
in
the
field
has
recognized
the
depth
and
necessity
of
this
path.
One of
the
two
important
experimental consequences
has
incidentally already
been verified
splendidly, namely,
the
shift
of spectral
lines
through
a
gravitation
potential.[6]
In
July I
am
coming
to Zurich and shall tell
you
about
it.
With
cordial
greetings, yours,
A.
Einstein.
88. From
Helene
Katz[1]
[Berlin,]
46
Bamberger
St.,
11
June
1915
Dear
Professor,
Some
vague feeling
dictates
a
few
words to
flow
from
my
pen
to you.-Without
any
definable intention
perhaps,
also without the
expectation
of
a
reply
on
your
part.-
Some confounded devil
is breathing
down
my
neck and
compelling me now
constantly
to be at
the
ready
for
you.
Entirely
without
listening
to
my
ego’s
better
judgment,
which
feels,
quite
to
the
contrary,
that
things
have not been
rosey
for
you, especially
recently,
and
you
are
rather
in need
(sorry,
I know of
course, you
are
in need of nothing-from me)-and
that
you are, rather,
in need
of
having
people
be
a
bit
nice, I
should
say,
soothing,
to
you.
Without
danger,
dear
professor,
for
although
it
is
not
without
its
attractions
for
us
to be
considered
slightly
dangerous-I would not
like
to
appear
so
to
you-for
reasons
that
you
can
admit without
undue
vanity.
If
upon
receipt
of
this
letter
you
should
not
quite
be in
a
generous mood,
I
immediately beg your
pardon
for the
disturbance;-
otherwise
say
to
yourself:
Miss
Katz
would like
to
lull
me a
bit
with
a
tune
through
hours
that
are
peppered
with
gray-it
is
just
for this that
she writes.
Maybe
we can go on a
walk with Elsa
again
sometime
and
talk about the
clouds
and
trees.
That
would be
nice.
In
the
meantime,
once
again my regards, yours,
Helene
Katz.
I
want
to
tell
you one
of
my
mottos: