Knut Hamsun once said, in response to a questionnaire, that he wrote to kill time. I think that even if he were sincere in stating it thus he was deluding himself. Writing, like life itself, is a voyage of discovery. The adventure is a metaphysical one: it is a way of approaching life indirectly, of acquiring a total rather than a partial view of the universe. The writer lives between the upper and lower worlds: he takes the path in order to eventually become that path himself.
Arthur Miller, “The Wisdom of the Heart”