It's the understanding that he can make things happen in the world; he can defend himself against his father's punishment through the use of words.

自己的价值;,凭借唇齿,他可以与父亲周旋。

耶鲁公开课 - 1945年后的美国小说课程节选

His father's death, when Frost was a boy, represented, among other things, an economic crisis for his family. Frost's schooling was erratic.

他小时候父亲去世，因为他家陷入了经济危机,所以他上学总是断断续续。

耶鲁公开课 - 现代诗歌课程节选