II. His Ruling Symbols from The Philosophy of Shelley’s Poetry in Ideas of Good and Evil by William Butler Yeats.

“There is hardly indeed a poem of any length in which one does not find it as a symbol of love, or liberty, or wisdom, or beauty, or of some other expression of that Intellectual Beauty, which was to Shelley’s mind the central power of the world; and to its faint and fleeting light he offers up all desires” [via]