The earth experiences he says certain periodic destructions and cataclysms civilizations are reduced to barbarism only to recover and grow again.

他说，世界不断经历,阶段性的摧残及剧变,文明虽被降格至野蛮,但终究会复原并再次茁壮。

耶鲁公开课 - 政治哲学导论课程节选

As early as 1826 an important pro-slavery writer named Edward Brown argued that "Slavery," he said, quote: "Had ever been the stepping ladder by which nations have passed from barbarism to civilization."

早在1826年,一位重要的亲奴主义作家,爱德华·布朗说过,"奴隶制,曾是帮助那些国家从野蛮时期,发展到文明社会的阶梯"

耶鲁公开课 - 美国内战与重建课程节选