93

A4

is possible that my correspondent did not
intend to ask in what I think the soundness
of reasoning consists but by the
question “What makes reasoning sound?”
he may mean “What causes men to
reason right?” That question I did substantially
answer in my first lecture. Namely,
to begin with, when a boy or girl first begins
to criticize his inferences, and until
he does that he does not reason, he
finds that he has already strong prejudices
in favor of certain ways of
arguing. Those prejudices whether they
be inherited or acquired, were first formed