As such, techniques and tools developed for literary criticism and literary theory rose to greater prominence in Western philosophy of the late twentieth century. Philosophers of various stripes paid more attention to literature than their predecessors did. Some sought to examine the question of whether it was in fact truly possible to communicate using words, whether it was possible for an author's intended meaning to be communicated to a reader. Others sought to use literary works as examples of contemporary culture, and sought to reveal unconscious attitudes they felt present in these works for the purpose of social criticism.