Considered as a whole, Hesse's achievement can hardly be matched in modern literature; it is the continually rising trajectory of an idea, the fundamentally religious idea of how to 'live more abundantly'. Hesse has little imagination in the sense that Shakespeare or Tolstoy can be said to have imagination, but his ideas have a vitality that more than makes up for it. Before all, he is a novelist who used the novel to explore the problem: What should we do with our lives? The man who is interested to know how he should live instead of merely taking life as it comes, is automatically an Outsider.
p. 77 - The Outsider (1956)