IN the following pages I have confined myself in the main to those problems
of philosophy in regard to which I thought it possible to say something
positive and constructive, since merely negative criticism seemed out of
place. For this reason, theory of knowledge occupies a larger space than
metaphysics in the present volume, and some topics much discussed by
philosophers are treated very briefly, if at all.
I have derived valuable assistance from unpublished writings of G. E. Moore
and J. M. Keynes: from the former, as regards the relations of sense-data to
physical objects, and from the latter as regards probability and induction.
I have also profited greatly by the criticisms and suggestions of Professor