Shelley, whose talents would otherwise have made him eligible, was an outcast from the first ... They always knew where to draw the line and they drew it, emphatically, at Shelley. I was informed that Byron could be forgiven because, though he had sinned, he had been led into sin by the unfortunate circumstances of his youth, and had always been haunted by remorse, but that for Shelley's moral character there was nothing to be said since he acted on principle and therefore he could not be worth reading.
Less oft peace in Shelley's mind, Than calm in waters seen.Percy Bysshe Shelley
I regard Shelley's early 'atheism' and later Pantheism, as simply the negative and the affirmative side of the same progressive but harmonious life-creed. In his earlier years his disposition was towards a vehement denial of a theology which he never ceased to detest; in his maturer years he made more frequent reference to the great World Spirit in whom he had from the first believed. He grew wiser in the exercise of his religious faith, but the faith was the same throughout; there, was progression, but no essential change.Percy Bysshe Shelley