How shall we account for the part played in the progress of civilization by the rusti c Burns, the village-bred Shakespeare, or by Lincoln the frontiersman? 李贝.西洋科学史.
It has ever since been the favorite weapon of the cowboy and frontiersman. 佚名.神奇的知识之书.
That is why we, the children of frontiersmen, city builders and immigrants, surprise Europe constantly with our worship of constitutions, our social and political timidity. 沃尔特·李普曼.政治序论.
Little was known of the topography of the country beyond the settlements of these frontiersmen. 尤利西斯·格兰特.U.S.格兰特的个人回忆录.