cover y ▁of ▁the ▁works ▁of ▁Arist ot le ▁allowed ▁the ▁full ▁development ▁of ▁the ▁new ▁Christian ▁philosophy ▁and ▁the ▁method ▁of ▁sch ol astic ism . ▁By ▁ 1 2 0 0 ▁there ▁were ▁reason ably ▁accurate ▁Latin ▁transl ations ▁of ▁the ▁main ▁works ▁of ▁Arist ot le , ▁Eu cl id , ▁P to le my , ▁Arch im edes , ▁and ▁Gal en — that ▁is , ▁of ▁all ▁the ▁intellect ually ▁cru cial ▁ancient ▁authors ▁except ▁Pl ato . ▁Also , ▁many ▁of ▁the ▁medieval ▁Arab ic ▁and ▁Jewish ▁key ▁texts , ▁such ▁as ▁the ▁main ▁works ▁of ▁Av ic en na , ▁A ver ro es ▁and ▁Ma imon ides ▁now ▁became ▁available ▁in ▁Latin . ▁During ▁the ▁ 1 3 th ▁century , ▁sch ol ast ics ▁expanded ▁the ▁natural ▁philosophy ▁of ▁these ▁texts ▁by ▁comment aries ▁( associ ated ▁with ▁teaching ▁in ▁the ▁univers ities ) ▁and ▁independent ▁treat ises . ▁ ▁Notable ▁among ▁these ▁were ▁the ▁works ▁of ▁Robert ▁Gros set este , ▁Roger ▁Ba con , ▁John ▁of ▁Sac rob os co , ▁Albert us ▁Magn us , ▁and ▁D uns ▁Scot us . ▁ ▁Sch ol ast ics ▁believed ▁in ▁empir ic ism ▁and ▁supporting ▁Roman ▁Catholic ▁do ctr ines ▁through ▁sec ular ▁study , ▁reason , ▁and ▁logic . ▁The ▁most ▁famous ▁was ▁Thomas ▁Aqu inas ▁( l ater ▁declared ▁a ▁" Do ctor ▁of ▁the ▁Church "), ▁who ▁led ▁the ▁move ▁away ▁from ▁the ▁Plat onic ▁and ▁August in ian ▁and