Editing Isaac Klein (section)

==Rabbinic thought==
The philosophy upon which ''A Guide to Jewish Religious Practice'' is written is stated in the foreword: "The premise on which Torah is based is that all aspects of life - leisure no less than business, worship or rites of passage (birth, bar mitzvah, marriage, divorce, death) - are part of the covenant and mandate under which every Jew is to serve God in everything he does. In the eyes of Torah there is, strictly speaking, no such thing as the purely private domain, for even in solitude - be it the privacy of the bath or the unconsciousness of sleep - one has the capacity and the duty to serve God." This message, of life seen in consonance with the dictates of Judaism, permeates many pages of the book. Rabbi [[Louis Finkelstein]], scholar of the JTSA, wrote: "There are those who would think that we have but two alternatives, to reject or to accept the law, but in either case to treat it as a dead letter. Both of these alternatives are repugnant to the whole tradition of Judaism. Jewish law must be preserved but it is subject to interpretation by those who have mastered it, and the interpretation placed upon it by duly authorized masters in every generation must be accepted with as much reverence as those which were given in previous generations."{{citation needed|date=June 2013}}

This understanding of traditional preservation of the law through its continuous interpretation lies at the heart of Klein's extensive study of Jewish law.

Klein's papers are located at the University Archives, [[University at Buffalo, The State University of New York|State University of New York at Buffalo]] (see [https://web.archive.org/web/20081015192855/http://ublib.buffalo.edu/libraries/units/archives/ead/ms149/ms149.frame.html finding aid]). The archives include fourteen reels of microfilm. The collection consists of extensive writings by Klein on traditional Jewish practice and law. This includes manuscript material for his books ''Guide to Jewish Religious Practice'' (1979), ''The Ten Commandments in a Changing World '' (1963), ''The Anguish and the Ecstasy of a Jewish Chaplain'' (1974), and his translation of ''The Code of Maimonides (Mishneh Torah): Book 7, The Book of Agriculture'' (1979). The collection also contains speeches, sermons, articles, and remarks from the Conservative Jewish viewpoint on subjects such as [[Jewish medical ethics]], [[kashrut|dietary laws]], adoption, and marriage and divorce. Meeting minutes, annual reports, bulletins, and sermons relating to Klein's rabbinical vocations in Springfield, Massachusetts and Buffalo, New York are also included. The papers contain photographs, wartime letters, and military records of Klein documenting his service in World War II as a director of Jewish religious affairs in Germany.