Answer
The ability to read and write, especially, documenting his experiences for about the horrors of slavery.
Step-by-step explanation:
Within Chapter 10, Frederick Douglass found that learning to be literate from his slave owners and think critically about their enslavement created change. Slaves were able to pass down their ideology from one to another, and exchange phrases such as "abolitionist," a phrase that made Douglass join the movement along with others slaves. His main plan was to become literate, by studying English phrases in the dictionary and conversing with others to write a book that challenged the views of slavery.