An heroic poem (truly such) is undoubtedly the greatest work which the soul of man is capable to perform. The design of it is to form the mind to heroic virtue by example; it is conveyed in verse that it may delight while it instructs. The action of it is always one, entire, and great. The least and most trivial episodes or under- actions which are interwoven in it are parts either necessary or convenient to carry on the main design.