"[...]and last movements do not aim to give any programs of the life or of any particular work of either Emerson or Thoreau but rather composite pictures or impressions. They are, however, so general in outline that, from some viewpoints, they may be as far from accepted impressions (from true conceptions, for that matter) as the valuation which they purport to be of the influence of the life, thought, and character of Emerson and Thoreau is inadequate. I—Prologue How far is anyone justified, be he an authority or a layman, in expressing or trying to express in terms of music (in sounds, if you like) the value of anything, material, moral, intellectual, or spiritual, which is usually expressed in terms other than music? How far afield can music go and keep honest as well as reasonable or artistic? Is it a matter limited only by the composer's power of expressing what lies in his subjective or objective consciousness? Or is it limited by any limitations of[...]".