xlviii PREFACE TO THE SECOND EDITION 



sophical reading, and with the strongest emphasis, 

 this charge of omitting vital proofs, I may refer again 

 to Appendix D,^ as containing, in my reply to him, 

 an additional showing of the fact that the estabhsh- 

 ment of a priori knowledge, and of what this at bot- 

 tom consists in, supplies the entire proof required for 

 the system of Rational PluraHsm, or, as I still prefer 

 to name it. Personal Idealism. For the removal, or 

 at any rate the easing, of subtler and deeper-reaching 

 difficulties which the system involves, I will refer to 

 Appendix E, where I reply to Mr. McTaggart, to 

 whom I am indebted for the most penetrating appre- 

 ciation, and the most searching criticisms, that the 

 book has received. 



With the foregoing cautions, and the various other 

 aids to a right understanding furnished in the present 

 edition, I shall now leave these essays to their fate. 

 But I must not close without expressing my obliga- 

 tions to the editor of Mind, the editor of Kantsttidien, 

 the editor of the I ntertiational Journal of Ethics, and 

 the editor-in-chief of the New York Daily Tribune, 

 for their kind permission to use the various material 

 now printed in the Appendices. 



University of California, 

 Berkeley, July, 1904. 



1 See p. 414 seq., below. 



