1965, Sun Yat-sen's ink couplet "The revolution is not successful, comrades still have to work hard" is a first-class cultural relic collection. 1988, the exhibition was revised, requiring copying couplets. When copying, the author concluded that couplets were not the original works of Sun Yat-sen based on several years' experience in cultural relics work, especially copying experience. To this end, the author looked through the ink and photocopies of Sun Yat-sen that can be seen at home and abroad, consulted a large number of works and related historical materials of Sun Yat-sen, and finally found the evidence that Sun Yat-sen did not write couplets, further confirming that Sun Yat-sen never said this sentence.

The author's two textual research articles were published in Research Materials of Party History (1992 No.2) and China Zhangwu Daily (1990 No.8). The main evidence is: 1925, 14. In March, the second edition of the Morning Post wrote: "... the portrait of Sun Wen is enshrined in the middle of the mourning hall, with a will on the base. Couplets are hung on both sides, and wills are collected. The first part is' the revolution has not yet succeeded' and the second part is' comrades still need it'. " The Wills Collection is naturally not collected by Sun Yat-sen. ..

There are three points that can explain that "Comrades who have failed in the revolution still have to work hard for Sun Wen" is a collection of works, not written by Sun Yat-sen, nor is it a copy of the original: first, the inscription has no seal and is ignorant all the time. The real ink of Sun Yat-sen's inscription can be seen, with the next time and seal. Sun Yat-sen would not write such couplets for no reason. Second, the font size violates the agreement. No one with a little common sense will write the font as big as the signature font. The word "Sun Wen" in the inscription is the same size as other fonts, which is neither regular nor beautiful. Thirdly, the stroke shape of the word 14, especially the woodcut marks of the word "fate" and "Wei" are obvious, which can be seen quite clearly in the original work.

The ink of the content "The revolution has not been successful, comrades still have to work hard" is relatively standard and suitable for the format (with seal, signature and time, overall coordination). The author has seen several kinds. But the dates indicated were all after Sun Yat-sen's death in March 1925, and those written before 1925 have been lost. Sun Yat-sen died, and he can no longer write. In the 1930s, a large number of printed copies of this content appeared in various newspapers, which can be concluded that it was done by later generations. Later generations are also well-intentioned, hoping that the revolution will succeed and encourage each other.

It is the collection of these words that has been copied and pieced together, giving people a feeling that the statement was written by Sun Yat-sen ... At that time, both the parties and the people knew that it was a misinformation and did not correct it because there was no need to correct it.