Answer :
Because He is forced to work in every weather condition, no matter how hot or cold. The constant toil Douglass’s hope and destroys his interest in intellectual pursuits. He is unable to think clearly but he cannot follow through out of a combination of hope and fear.
What Douglass hopes to accomplish with his accusations in this speech is to persuade white Americans to throw off their hypocrisy and really do something to help the slaves. In this speech, he is trying to get them to see that their own actions and those of their fellow Northerners really are part of the problem. He is trying to get them to see that the country that they feel so proud of is really not based on freedom and liberty but on slavery and tyranny. He is trying to get them to see that so that they will be shocked and be motivated to do something about slavery.