The work of Wordsworth was conditioned by the French Revolution but it hardly embodied the revolutionary spirit. What he conceived to be its excesses revolted him, and though he sought and sang freedom, he found it rather in the later revolt of the nationalities against the Revolution as manifested in Napoleon himself. The spirit of the revolution, as it was understood in France and in Europe, had to wait for Shelley for its complete expression. Freedom is the breath of his work--freedom not only from the tyranny of earthly powers, but from the tyranny of religion, expressing itself in republicanism, in atheism, and in complete emancipation from the current moral code both in conduct and in writing. The reaction which had followed the overthrow of Napoleon at Waterloo, sent a wave of absolutism and repression all over Europe, Italy returned under the heel of Austria; the Bourbons were restored in France; in England came the days of Castlereagh and Peterloo. The poetry of Shelley is the expression of what the children of the revolution--men and women who were brought up in and believed the revolutionary gospel--thought about these things. But it is more than that. Of no poet in English, nor perhaps in any other tongue, could it be said with more surety, that the pursuit of the spirit of beauty dominates all his work. For Shelley it interfused all nature and to possess it was the goal of all endeavour. The visible world and the world of thought mingle themselves inextricably in his contemplation of it. For him there is no boundary-line between the two, the one is as real and actual as the other. In his hands that old trick of the poets, the simile, takes on a new and surprising form. He does not enforce the creations of his imagination by the analogy of natural appearances; his instinct is just the opposite--to describe and illumine nature by a reference to the creatures of thought. Other poets, Keats for instance, or Tennyson, or the older poets like Dante and Homer, might compare ghosts flying from an enchanter like leaves flying before the wind. They might describe a poet wrapped up in his dreams as being like a bird singing invisible in the brightness of the sky. But Shelley can write of the west wind as "Before whose unseen presence the leaves, dead, Are driven like ghosts from an enchanter fleeing," and he can describe a skylark in the heavens as "Like a poet hidden In the light of thought." Of all English poets he is the most completely lyrical. Nothing that he wrote but is wrought out of the anguish or joy of his own heart. "Most wretched souls," he writes "Are cradled into poetry by wrong They learn in suffering what they teach in song."