William Blake and the Imagination in Ideas of Good and Evil by William Butler Yeats.

“Sometimes one feels, even when one is reading poets of a better time—Tennyson or Wordsworth, let us say—that they have troubled the energy and simplicity of their imaginative passions by asking whether they were for the helping or for the hindrance of the world, instead of believing that all beautiful things have ‘lain burningly on the Divine hand.'” [via]