12.The record of the plow was insignificant, like the feeble scratches on stone left by prehistoric races, so indeterminate that they may, after all, be only the markings of glaciers, and not a record of human strivings.
犁的记录微不足道,就像史前种族
石头上留下的微弱划痕一样,如此不确定,以至于它们毕竟可能只是冰川的痕迹,而不是人类奋斗的记录。机翻