am and I originating most of the novelties, while Grote
and others furnished an excellent tribunal or test. From this time I
formed the project of writing a book on Logic, though on a much humbler
scale than the one I ultimately executed.

Having done with Logic, we launched into Analytic Psychology, and having
chosen Hartley for our text-book, we raised Priestley's edition to an
extravagant price by searching through London to furnish each of us with
a copy. When we had finished Hartley, we suspended our meetings; but my
father's _Analysis of the Mind_ being published soon after, we
reassembled for the purpose of reading it. With this our exercises
ended. I have always dated from these conversations my own real
inauguration as an original and independent thinker. It was also through
them that I acquired, or very much strengthened, a mental habit to which
I attribute all that I have ever done, or ever shall do, in speculation:
that of never accepting half-solutions of difficulties as complete;
never abandoning a puzzle, but again and again returning to it until it
was cleared up; never allowing obscure corners of a subject to remain
unexplored, because they did not appear important; never thinking that I
perfectly understood any part of a subject until I understood the whole.

Our doings from 1825 to 1830 in the way of public speaking, filled a
considerable place in my life during those years, and as they had
important effects on my development, something ought to be said of them.

There was for some time in existence a society of Owenites, called the
Co-operative Society, which met for weekly public discussions in
Chancery Lane. In the early part of 1825, accident brought Roebuck in
contact with several of its members, and led to his attending one or two
of the meetings and taking part in the debate in opposition to Owenism.
Some one of us started the notion of going there in a body and having a
general battle: and Charles Austin and some of his friends who did not
usually take part in our joint exercises, entered into the project. It
was carried out by concert with the principal members of the Society,
themselves nothing loth, as they naturally preferred a controversy with
opponents to a tame discussion among their own body. The question of
population was proposed as the subject of debate: Charles Austin led the
case on our side with a brilliant speech, and the fight was kept up by
adjournment through five or six wee