从古者诗三千余篇到三百五篇，是一个在自然选择淘汰与人工整理双重作用下的层层递减的历史过程，不存在十去其九式的一蹴而就的情况。
There is a historical process of natural elimination and sorting out for the formation of Book of Poetry . And there is not the conditions of accomplish in an action .
三百五篇