差之毫厘，谬以千里

Explanation: Although the difference between the very small beginning, the result will cause great error. 　　Usage: Complex sentence; as subject, clause; used to highlight errors can not have a trace of 　　Source: Pre Confucius "The Analects of Confucius advanced": "too far" Song Xi Annotations: "The man had less, are also. Least bit of difference, Miao thousands of miles." 　　Examples: Mapping work is often a ~, it must be very accurate, must not be careless. Thesaurus:  Difference to his fear for a thousand miles, Difference of iota A slight error in the beginning results in a big the winged steed, Difference of the mm tail Err The winged steed