Although Arnold's poetry received only mixed reviews and attention during his lifetime, his forays into literary criticism were more successful. Arnold is famous for introducing a methodology of literary criticism somewhere between the historicist approach Common to many critics at the time and the personal essay; he often moved quickly and easily from literary subjects to political and social issues. His Essays in Criticism (1865, 1888), remains a significant influence on critics to this day, and his prefatory essay to that collection, "The Function of Criticism at the Present Time", is one of the most influential essays written on the role of the critic in identifying and elevating literature — even while admitting, "The critical power is of lower rank than the creative." In one of his most famous essays on the topic, "The Study of Poetry", Arnold wrote that, "Without poetry, our science will appear incomplete; and most of what now passes with us for religion and philosophy will be replaced by poetry". He considered the most important criteria used to judge the value of a poem were "high truth" and "high seriousness". By this standard, Chaucer's Canterbury Tales did not merit Arnold's approval. Further, Arnold thought the works that had been proven to possess both "high truth" and "high seriousness", such as those of Shakespeare and Milton, could be used as a basis of comparison to determine the merit of other works of poetry. He also sought for literary criticism to remain disinterested, and said that the appreciation should be of "the object as in itself it really is."