eder er , ▁in ▁ 1 7 8 7 , ▁the ▁Royal ▁Society ▁of ▁Science ▁and ▁Arts ▁of ▁Met z ▁offered ▁a ▁prize ▁for ▁the ▁best ▁ess ay ▁in ▁answer ▁to ▁the ▁question : ▁" What ▁are ▁the ▁best ▁means ▁to ▁make ▁the ▁Jews ▁happ ier ▁and ▁more ▁useful ▁in ▁France ? ". ▁Abb é ▁Gre go ire ▁was ▁one ▁of ▁three ▁la ure ates ▁with ▁his ▁Ess ay ▁on ▁the ▁physical , ▁moral ▁and ▁political ▁reg ener ation ▁of ▁the ▁Jews . ▁It ▁was ▁the ▁first ▁step ▁towards ▁their ▁em an cip ation , ▁which ▁was ▁always ▁def ended ▁by ▁Ro eder er . ▁ ▁In ▁ 1 7 8 8 ▁he ▁published ▁the ▁bold ly ▁liberal ▁pam ph let ▁Dé putation ▁aux ▁États ▁généra ux ▁(" De putation ▁to ▁the ▁Est ates - General "). ▁Part ly ▁on ▁the ▁strength ▁of ▁this ▁he ▁was ▁elected ▁deput y ▁to ▁the ▁Est ates - General ▁by ▁the ▁Third ▁Est ate ▁of ▁the ▁ba illi age ▁of ▁Met z . ▁Although ▁not ▁present ▁at ▁the ▁event ▁of ▁June ▁ 1 7 8 9 , ▁Ro eder er ▁was ▁sketch ed ▁by ▁Jacques - Louis ▁David ▁into ▁his ▁drawing ▁of ▁the ▁Tennis ▁Court ▁O ath . ▁ ▁In ▁the ▁National ▁Const itu ent ▁Assembly , ▁Ro eder er ▁was ▁a ▁member ▁of ▁the ▁committee ▁of ▁tax es ▁( com ité ▁des ▁contributions ), ▁prepared ▁a ▁scheme ▁for ▁a ▁new ▁system ▁of ▁tax ation , ▁drew ▁up ▁a ▁law ▁on ▁pat ents , ▁occupied ▁himself ▁with