Answer
In the 20th century, Xunzi's doctrine underwent a significant reevaluation. Scholars during this time re-examined his ideas and recognized their relevance to contemporary issues. Xunzi's emphasis on human nature as inherently evil and the need for strict social order resonated with the political and social challenges of the time. This reevaluation led to a renewed appreciation of Xunzi's philosophy and its influence on modern Chinese thought.