▁articles ▁of ▁a ▁broad ly ▁Pow ellite ▁nature ▁arg uing ▁against ▁the ▁UK ▁being ▁a ▁member ▁of ▁the ▁E EC . ▁Cow ling ▁res igned ▁in ▁ 1 9 7 1 ▁when ▁the ▁editor ▁acting ▁in ▁George ▁G ale ' s ▁absence ▁refused ▁to ▁publish ▁Cow ling ' s ▁protest ▁against ▁his ▁publication ▁of ▁an ▁article ▁by ▁Tony ▁Pal mer ▁which ▁suggested ▁that ▁the ▁important ▁question ▁about ▁Princess ▁Anne ▁was ▁whether ▁she ▁was ▁a ▁vir gin . ▁ ▁It ▁was ▁on ▁Cow ling ' s ▁suggestion ▁that ▁Paul ▁Smith ▁edited ▁a ▁collection ▁of ▁Lord ▁Sal is bury ' s ▁articles ▁from ▁the ▁Qu arter ly ▁Review , ▁published ▁in ▁ 1 9 7 2 . ▁ ▁In ▁ 1 9 7 7 ▁Margaret ▁Th atch er ▁visited ▁the ▁Cambridge ▁Gr adu ate ▁Conserv ative ▁Association ▁of ▁Peter house ▁where ▁she ▁" cut ▁through ▁the ▁compact ▁subt le ty ▁and ▁' r ational ▁p ess im ism ' ▁of ▁[ C ow ling ]" ▁and ▁sharp ly ▁ret orted : ▁" We ▁don ' t ▁want ▁p ess im ists ▁in ▁our ▁party ". ▁In ▁ 1 9 7 8 ▁he ▁ceased ▁to ▁be ▁Director ▁of ▁Studies ▁in ▁Peter house , ▁and ▁helped ▁to ▁found ▁the ▁Sal is bury ▁Group , ▁a ▁group ▁of ▁conserv ative ▁think ers ▁named , ▁on ▁Michael ▁O akes h ott ' s ▁advice , ▁after ▁Lord ▁Sal is bury . ▁In ▁the ▁same ▁year ▁Cow ling ▁published ▁Conserv ative ▁Ess ays ▁where ▁he ▁said : ▁ ▁Cow ling