from each other.

Should you be determined--_irrevocably_ determined (but consider!) upon
the disunion with Messrs. Longman, I will just observe that when persons
have been intimate, they have discovered each other's vulnerable points;
it therefore shows no great talent to direct at them shafts of
resentment. It is easy both to write and to say ill-natured, harsh, and
cutting things of each other. But remember that this power is _mutual_,
and in proportion to the poignancy of the wound which you would inflict
will be your own feelings when it is returned. It is therefore a maxim
which I laid down soon after a separation which I _had_, never to say or
do to my late colleague what he could say or do against me in return. I
knew that I had the personal superiority, but what his own ingenuity
could not suggest, others could write for him.

I must apologise again for having been so tedious, but I am sure that
the same friendliness on your part which has produced these hasty but
well-meant expostulations will excuse them. After this, I trust it is
unnecessary for me to state with how much sincerity,

I am, dear sirs,

Your faithful friend,

JOHN MURRAY.

Ten days after this letter was written, Mr. Murray sent a copy of it to
Messrs. Longman & Co., and wrote:

_John Murray to Messrs. Longman & Co_,