Me:  Dear Albert

do excuse me-
I'll never be able
to understand
your Relativity Theory.

Albert: My friend

don't you worry:
what really
matters is
I take to heart
your poetry:
of life you write
this is the subject
which moves humanity.

(He added:
Have a cup of tea.

After that we together played
Mozart, Beethoven, Schubert
Schumann, Dvorak and Tchaikovsky -
so well he played the violin
while I did, so very poorly!)