Ideas of Good and Evil.
of centuries with the patterns of a carpet or a tapestry.
As Shelley sailed along those great rivers and saw or imagined the cave that associated itself with rivers in his mind, he saw half-ruined towers upon the hilltops, and once at any rate a tower is used to symbolize a meaning that is the contrary to the meaning symbolized by caves. Cythna's lover is brought through the cave where there is a polluted fountain to a high tower, for being man's far-seeing mind, when the world has cast him out he must to the 'towers of thought's crowned powers'; nor is it possible for Shelley to have forgotten this first imprisonment when he made men imprison Lionel in a tower for a like offence; and because I know how hard it is to forget a symbolical meaning, once one has found it, I believe Shelley had more than a romantic scene in his mind when he made Prince Athanase follow his mysterious studies in a lighted tower above the sea, and when he made
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