▁of ▁re put e ▁like ▁The ▁Qu est , ▁Journal ▁of ▁Philosoph y ▁and ▁the ▁International ▁Journal ▁of ▁Eth ics . ▁He ▁also ▁completed ▁his ▁first ▁book , ▁The ▁Philosoph y ▁of ▁Rab ind ran ath ▁Tag ore . ▁He ▁believed ▁Tag ore ' s ▁philosophy ▁to ▁be ▁the ▁" gen u ine ▁manifest ation ▁of ▁the ▁Indian ▁spirit ". ▁His ▁second ▁book , ▁The ▁Re ign ▁of ▁Religion ▁in ▁Contempor ary ▁Philosoph y ▁was ▁published ▁in ▁ 1 9 2 0 . ▁ ▁In ▁ 1 9 2 1 ▁he ▁was ▁appointed ▁as ▁a ▁professor ▁in ▁philosophy ▁to ▁occup y ▁the ▁King ▁George ▁V ▁Chair ▁of ▁M ental ▁and ▁Mor al ▁Science ▁at ▁the ▁University ▁of ▁Cal cut ta . ▁He ▁represented ▁the ▁University ▁of ▁Cal cut ta ▁at ▁the ▁Congress ▁of ▁the ▁Univers ities ▁of ▁the ▁British ▁Empire ▁in ▁June ▁ 1 9 2 6 ▁and ▁the ▁International ▁Congress ▁of ▁Philosoph y ▁at ▁Harvard ▁University ▁in ▁September ▁ 1 9 2 6 . ▁Another ▁important ▁academic ▁event ▁during ▁this ▁period ▁was ▁the ▁inv itation ▁to ▁deliver ▁the ▁H ib bert ▁L ect ure ▁on ▁the ▁ide als ▁of ▁life ▁which ▁he ▁delivered ▁at ▁Manchester ▁College , ▁Oxford ▁in ▁ 1 9 2 9 ▁and ▁which ▁was ▁subsequently ▁published ▁in ▁book ▁form ▁as ▁An ▁Ide al ist ▁View ▁of ▁Life . ▁ ▁In ▁ 1 9 2 9 ▁Rad h ak r ish nan ▁was ▁invited ▁to ▁take ▁the ▁post ▁vac ated ▁by ▁Princi pal ▁J . ▁Est lin ▁Car p enter