The crown of literature is poetry. It is its end and aim. It is the sublimest activity of the human mind. It is the achievement of beauty and delicacy. The writer of prose can only step aside when the poet passes.
W. Somerset Maugham
Poetry is not a turning loose of emotion, but an escape from emotion; it is not the expression of personality, but an escape from personality. But, of course, only those who have personality and emotions know what it means to want to escape from these things.
T.S. Eliot, Tradition and the Individual Talent, 1919