Cavendish also included a prefatory letter to natural philosophers. She knew no language but English, and that even her English was somewhat limited, since she was familiar only with "that which is most usually spoke." In other words, she downplayed her knowledge of the technical vocabulary used by natural philosophers, and thereby her knowledge of opinions and discourses that preceded her own. She then dismissed errors she might make as trivial, asserting that she did not mean her text to be taken as truth. She wrote simply to pass time and expected her work to be read for the same end. This epistle also explained her writing in verse: poets were thought to write fiction and that fiction was aligned with pastime, not truth. So verse might be expected to contain errors. Cavendish lamented that her work was not more entertaining and advised readers to skip any part they did not like.