An important augment to doubt Classic of Documents in ancient scripts is that it appeared later, and it is taken it as a "pseudograph".
学术界怀疑古文《尚书》为“伪书”的一条重要论据，就是古文晚出。
2
The widespread of pirated books, pseudograph and books that caused misleading nowadays have made vicious impact on the mental health of readers.
盗版书、“伪书”和“误导书”的泛滥，对读者的心灵造成了极大毒害。
3
Kongzi Jiayu (The Confucian School's Analects) is an important work for researching Confucius' life and thoughts. Taken as a pseudograph for a long time, it hasn't been well studied.