▁in ▁ 1 9 3 1 . ▁G hy ka ▁developed ▁a ▁personal ▁philosophy ▁in ▁which ▁all ▁living ▁things ▁were ▁end owed ▁with ▁an ▁energy ▁and ▁function ed ▁with ▁a ▁rh ythm ▁related ▁to ▁that ▁of ▁the ▁golden ▁ratio . ▁Further ▁work ▁was ▁published ▁in ▁French ▁as ▁Ess ai ▁sur ▁le ▁r yth me ▁( 1 9 3 8 ) ▁, ▁Tour ▁d ' hor izon ▁philosoph ique ▁( 1 9 4 6 ) ▁and ▁Philosoph ie ▁et ▁Myst ique ▁du ▁nombre ▁( 1 9 5 2 ), ▁and ▁in ▁English ▁as ▁The ▁Ge ometry ▁of ▁Art ▁and ▁Life ▁( 1 9 4 6 ). ▁Ar ound ▁ 1 9 4 5 ▁G hy ka ▁was ▁offered ▁a ▁visit ing ▁Professor ship ▁at ▁the ▁University ▁of ▁Southern ▁California ▁in ▁Los ▁Angeles ▁because ▁the ▁President ▁of ▁the ▁University ▁had ▁read ▁Est h étique ▁des ▁proport ions , ▁and ▁this ▁was ▁followed ▁in ▁ 1 9 4 7 ▁by ▁a ▁job ▁in ▁the ▁Art ▁Department ▁of ▁Mary ▁Washington ▁College , ▁where ▁he ▁taught ▁his ▁personal ▁a est h etic ▁theories ▁for ▁three ▁years . ▁In ▁ 1 9 5 0 ▁he ▁returned ▁to ▁his ▁wife ▁at ▁their ▁family ▁home ▁in ▁Dublin ▁and ▁his ▁ ▁Pract ical ▁Hand book ▁of ▁Ge ometry ▁and ▁Design ▁ ▁was ▁published ▁in ▁ 1 9 5 2 . ▁▁▁ ▁Salvador ▁D ali ▁possessed ▁a ▁copy ▁of ▁one ▁of ▁G hy ka ' s ▁books ▁which ▁was ▁read ▁by ▁theatre ▁director ▁Peter ▁Brook , ▁who ▁was ▁prof ound ly ▁influenced ▁by