The author examines the nature and boundaries of the novel, arguing that critics often impose narrow rules and fail to welcome different artistic temperaments. He contrasts romantic and realist approaches, defends writers' freedom to imagine or observe, and describes differing compositional techniques: engineered plots aiming for climactic denouements versus naturalistic depictions that follow characters through ordinary periods. He contends that criticism should judge works by artistic merit and originality rather than conformity to an aesthetic school, and explains how realistic writing strives for a faithful, unobtrusive reproduction of life intended to provoke thought rather than merely to entertain.