; ▁University ▁Professor ▁Emer ita , ▁Columbia ▁University ▁ ▁William ▁C ron on , ▁Frederick ▁Jackson ▁Turner ▁and ▁Vil as ▁Research ▁Professor ▁of ▁History , ▁Geography ▁and ▁Environment al ▁Studies , ▁University ▁of ▁Wisconsin - Mad ison ▁ ▁Marie - Lu ce ▁Dem on et , ▁Emer it us ▁Professor ▁of ▁French ▁literature ▁( R ena issance ), ▁Senior ▁Fellow , ▁Institut ▁Univers itaire ▁de ▁France , ▁Centre ▁d ' E t udes ▁Sup érie ures ▁de ▁la ▁Renaissance , ▁University ▁François - R abel ais , ▁T ours ▁ ▁Georges ▁Did i - Hub erman , ▁Direct eur ▁d ' Ét udes ▁à ▁l ' É cole ▁des ▁Haut es ▁Ét udes ▁en ▁Sciences ▁Social es ▁( Par is ) ▁ ▁Peter ▁Hall , ▁Kru pp ▁Foundation ▁Professor ▁of ▁European ▁Studies , ▁Harvard ▁University ▁ ▁Reb e cca ▁Hend erson , ▁John ▁and ▁Nat ty ▁Mc Ar thur ▁University ▁Professor , ▁Harvard ▁University ; ▁Co - Direct or , ▁Business ▁& ▁Environment ▁In iti ative , ▁Harvard ▁Business ▁School ▁ ▁Nancy ▁Kan w isher , ▁Walter ▁A ▁Rosen bl ith ▁Professor ▁of ▁C ogn itive ▁Neu ros cience , ▁and ▁Investig ator , ▁McG overn ▁Institute ▁for ▁Bra in ▁Research , ▁Massachusetts ▁Institute ▁of ▁Technology ▁ ▁Mah m ood ▁M amd ani , ▁Herbert ▁Le h man ▁Professor ▁of ▁Government ▁and ▁Professor ▁of ▁Anth rop ology , ▁Columbia ▁University ; ▁Professor ▁and ▁Executive ▁Director , ▁M aker ere ▁Institute ▁of ▁Social ▁Research , ▁M aker ere ▁University ▁ ▁Jay ▁McC le ll