Poets in our civilization, as it exists at present, must be difficult...The poet must become more and more comprehensive, more allusive, more indirect, in order to force, to dislocate if necessary, language into its meaning.
Poetry should help, not only to refine the language of the time, but to prevent it from changing too rapidly.
Not only every great poet, but every genuine, but lesser poet, fulfils once for all some possibility of language, and so leaves one possibility less for his successors.