明清之际杰出的思想家和史学家顾炎武,用大半生的时间和精力写了一部洋洋80万言的读书札记《日知录》。这部“负经世之志,著资治之书”的巨著,问世300多年来始终被学术界尊为精品,以至成为清一代文史大家如方苞、戴震等一再疏正论辩的“显学”。虽是一部倾注大量心血精炼而成的巨著,但顾氏为该书所写 Gu Yanwu, an outstanding thinker and historian on the Ming and Qing dynasties, wrote an 800,000-word reading notes “日 知 录” for most of his life time and energy. This great book, entitled “The Book of Historical Experence and the Book of Assets”, has been revered by academics as a fine product for more than 300 years and has even become a “conspicuous study” of the Qing dynasty's literary history such as Fang Bao and Dai Zhen. Although it is a masterpiece devoted a lot of hard work, but Gu wrote for the book