In the acquisition of knowledge he was then as ever unrelaxing. "No student ever read more assiduously. He was to be found, book in hand, at all hours; reading in season and out of season; at table, in bed, and especially during a walk; not only in the quiet country, and in retired paths; not only at Oxford, in the public walks, and High Street, but in the most crowded thoroughfares of London. Nor was he less absorbed by the volume that was open before him, in Cheapside, in Cranbourne Alley, or in Bond Street, than in a lonely lane, or a secluded library. Sometimes a vulgar fellow would attempt to insult or annoy the eccentric student in passing. Shelley always avoided the malignant interruption by stepping aside with his vast and quiet agility." And again:--"I never beheld eyes that devoured the pages more voraciously than his; I am convinced that two-thirds of the period of the day and night were often employed in reading. It is no exaggeration to affirm, that out of twenty-four hours, he frequently read sixteen. At Oxford, his diligence in this respect was exemplary, but it greatly increased afterwards, and I sometimes thought that he carried it to a pernicious excess: I am sure, at least, that I was unable to keep pace with him." With Shelley study was a passion, and the acquisition of knowledge was the entrance into a thrice-hallowed sanctuary. "The irreverent many cannot comprehend the awe--the careless apathetic worldling cannot imagine the enthusiasm--nor can the tongue that attempts only to speak of things visible to the bodily eye, express the mighty emotion that inwardly agitated him, when he approached, for the first time, a volume which he believed to be replete with the recondite and mystic philosophy of antiquity: his cheeks glowed, his eyes became bright, his whole frame trembled, and his entire attention was immediately swallowed up in the depths of contemplation. The rapid and vigorous conversion of his soul to intellect can only be compared with the instantaneous ignition and combustion, which dazzle the sight, when a bundle of dry reeds, or other light inflammable substance, is thrown upon a fire already rich with accumulated heat."