anyone who had an objection, or other remark to make, made it. Our rule
was to discuss thoroughly every point raised, whether great or small,
prolonging the discussion until all who took part were satisfied with
the conclusion they had individually arrived at; and to follow up every
topic of collateral speculation which the chapter or the conversation
suggested, never leaving it until we had untied every knot which we
found. We repeatedly kept up the discussion of some one point for
several weeks, thinking intently on it during the intervals of our
meetings, and contriving solutions of the new difficulties which had
risen up in the last morning's discussion. When we had finished in this
way my father's _Elements_, we went in the same manner through Ricardo's
_Principles of Political Economy_, and Bailey's _Dissertation on Value_.
These close and vigorous discussions were not only improving in a high
degree to those who took part in them, but brought out new views of some
topics of abstract Political Economy. The theory of International Values
which I afterwards published, emanated from these conversations, as did
also the modified form of Ricardo's _Theory of Profits_, laid down in my
_Essay on Profits and Interest_. Those among us with whom new
speculations chiefly originated, were Ellis, Graham, and I; though
others gave valuable aid to the discussions, especially Prescott and
Roebuck, the one by his knowledge, the other by his dialectical
acuteness. The theories of International Values and of Profits were
excogitated and worked out in about equal proportions by myself and
Graham: and if our original project had been executed, my _Essays on
Some Unsettled Questions of Political Economy_ would have been brought
out along with some papers of his, under our joint names. But when my
exposition came to be written, I found that I had so much over-estimated
my agreement with him, and he dissented so much from the most original
of the two Essays, that on International Values, that I was obliged to
consider the theory as now exclusively mine, and it came out as such