From what I have already said, the reader can gather how individual was Rashi's method. The foundation for his commentaries, it is true, was provided by tradition and by the instruction he received from his masters. But over and above the circumstance that he preserved only what seemed fitting to him, is the fact that value attached rather to the setting given the material than to the material itself. Herein resides Rashi's merit - and the merit is great. He was occupied not so much in extracting from the discussion of the Talmud the essential ideas, the principles indicating rules of practice, as in rendering the discussion comprehensible both in its entirety and in its details. He wrote a grammatical commentary which provides the exact meaning, not only of the opinions set forth, but also of the phrases and expressions employed. A Jewish scholar of our day, I. H. Weiss, who has accomplished much toward acclimatizing the scientific study of the Talmud in Eastern Europe, justly remarked - and what he says is a lesson to the rabbis of his country: How many Talmudists are there nowadays who take pains to understand exactly the meaning of such and such a passage of the Talmud, or who are capable of explaining it grammatically? They do like the predecessors of Rashi, whose method it was to give an exposition of an entire discussion merely by simplifying its terms. They wrote consecutive commentaries, not notes; and they often failed to explain difficult words. Rashi, on the contrary, always definitely determined the meaning of the various terms. He does this with a sure touch, and the precision of his explanations is all the more remarkable as he did not know - whatever one may say to the contrary - the Talmudic lexicon of Nathan ben Jehiel, of Rome, which was not brought to a conclusion until four years after Rashi's death. It is a favorite trick of legend to establish relations between illustrious contemporaries, especially when their activities were exercised in the same field, and tradition has made Rashi the pupil of Nathan. The idea of such a relationship, however, is purely fantastic, the two rabbis probably not having ever known each other.[98] Rashi carried the same spirit of exactness and precision into the whole of this work - qualities indispensable but difficult of attainment; for as A. Darmesteter well says: Whoever has opened a page of the Talmud understands how necessary is a commentary upon a text written in Aramaic and treating of often unfamiliar questions in concise, exasperatingly obscure dialectics. The language, too, is obscure, and the lack of punctuation renders reading difficult to novices. No mark separates question from answer, digressions from parenthetical observations. The phrases form only a long string of words placed one after the other, in which one distinguishes neither the beginning nor the end of the sentences.