Roger Bacon , O.F.M. ( c. 1214-1294 ) ( scholastic accolade Doctor Mirabilis , meaning `` wonderful teacher '' ) , was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empirical methods .
Roger Bacon ( c. 1214-1294 ) was an English philosopher and Franciscan friar who placed considerable emphasis on the study of nature through empirical methods .