An introductory text-book of logic - Mellone, Sydney - Rare Books at ...

354 THE PROBLEMS WHICH WE HAVE RAISED.
portant questions are involved in it. 1 We shall conclude
by briefly touching upon one aspect of it.
Modem Logic, as we have explained it, becomes
identical with what is sometimes called the Theory of
Knowledge, or Epistemology. What is the relation of
the logical treatment of knowledge to the psychological ?
Before answering this question, we must remember that
Psychology at the present day is approached from
various points of view, and in particular from two funda
mentally different points of view one exemplified in the
Physiological Psychology of Wundt and the writings of the
school which he founded ; another, in Stout s Analytic
and Ex
The former treatment of Psychology has no
Psychology or Ladd s Psychology, Descriptive
planatory.
relation whatever to Logic ; for it scarcely treats ideas
as cognitive it leaves out the fact of knowledge and its
implications. The latter treatment deals elaborately
with description and analysis of the intellectual pro
cesses ; but it is interested in them only as mental facts.
Logic is interested in them as exemplifying the regula
tive principles of thought. It dwells on these principles
as types to which our thought must conform itself; and
hence Logic can go beyond the actual facts of the in
tellectual activities of mind, and can formulate an ideal
of knowledge, by which the worth that is to say, the
truth of our present intellectual achievements may be
judged.
The ideas and aims of what we have called Modern Logic
were explained by the late Professor T. H. Green in his
Oxford lectures on The Logic of the Formal Logicians and
The Logic of J. S. Mill (published, since the death of the
1 The aim and scope of the various "parts" of Philosophy are
considered in the author s Philosophical Criticism and Construc
tion, chapter i.