Some books are to be tasted,others to be swallowed,and some few to be chewed and. digested;that is,some books are to be read only in parts;others to be read,but not curiously;and some few to be read wholly,and with diligence and attention. 书有可浅尝者，有可吞食者，少数测须咀嚼消 化。换言之，有只需读其部分者，有只须大体涉 猎者，少数则须全读，读时须全神贯注，孜孜不 倦。 Some books are to be tasted, others to be swallowed, and some few to be chewed and digested; that is, some books are to be read only in parts; others to be read, but not curiously; and some few to be read wholly, and with diligence and attention. 书有可浅尝者，有可吞食者，少数则须咀嚼消 化。换言之，有只需读其部分者，有只须大体涉 猎者，少数则须全读，读时须全神贯注，孜孜不 倦