What did conductor say before the train sped away in polar express

In this excerpt, the characters describe the nature of

It's to know your purpose before you read something because a purpose can:

Read these sentences from the excerpt: i would sometimes say to them, i wished i could be as free as theywould be when they got to be men. "you will be free as soon as you aretwenty-one, but i am a slave for life! have not l as good a right to befree as you have? how does the use of a rhetorical question advance the author's purposeof showing that all people deserve freedom? it shows the reader that douglass is unsure of hisstatements. it indicates that douglass believes he deserves freedom. oit demonstrates that douglass is questioning his beliefs. it reminds the reader that some questions areunanswerable