As this array of publications shows, Buber was a prolific writer; yet the scientific quality of his work does not suffer on this account, at least in the opinion of his contemporaries. (See below for current assessments.) At the outset he adopted a certain system to which he consistently adhered. For a determination of the reading of the text he availed himself of all accessible manuscripts and printed works—and everything was accessible to him, as he spared no expense in obtaining copies of manuscripts and the rarest printed editions; he conscientiously recorded the various readings in footnotes, and he bestowed special care, chiefly in the older "midrashim", on the correction and explanation of words in the text borrowed from the Greek and the Latin. In the introductions, which almost assume the proportions of independent works (the introduction to the "Tanchuma" embraces 212 pages octavo), everything that bears upon the history of the work under consideration is discussed, and a compilation is given of the authors or works cited by the "Midrash" or serving as sources for it, and those that in turn have drawn upon the "Midrash". His work is distinguished by thoroughness, and reveals his synthetic ability as well as the vast extent of his reading. The only serious opposition to the views encountered by Buber has been in regard to his theory concerning the "Tanchuma".