During the six years he spent working for the Fellowship, FitzGerald also studied metaphysics, a topic which he had not formally studied as an undergraduate, and he was particularly attracted to Berkeley 's philosophy.
Sa panahon ng anim na taon na siya nagtatrabaho para sa mga nagastos sa Fellowship, FitzGerald din-aral ng metapisika, isang paksa na kung saan siya ay hindi pormal na aral bilang isang undergraduate, at siya ay lalo na attracted sa Berkeley 's pilosopiya.