Ethico-Religious Concepts in the Qur'ān

“This book is a revised edition of my earlier work published in 1959 by Keio University in Tokyo, under the title, The Structure of the Ethical Terms in the Koran. Judged by the yardstick of my current thinking, the book stood much in need of improvement as a whole and of drastic revision in not a few places. In undertaking the revision, I have tried to make it a more satisfactory expression of my present views. Thus important additions have been made, many points which I now consider unnecessary have been dropped, and a number of passages have been completely rewritten. So much has it been altered that the book may very well be regarded as a new one, although the material used remains largely the same.