Problems of Philosophy

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I have derived valuable assistance from unpublished writings of Mr. G. E. Moore and Mr. J. M. Keynes: from the former, as te gards the relations of sense-data to physical objects, and from the latter as regards prob ability and induction. I have also profited greatly by the criticisms and suggestions of Professor Gilbert Murray.