Douglass is implying that witnessing the celebration has shown him that the nation is even crueler than he thought.
Explanation: Fredrick Douglass explained that the hipocrisy of the country to celebrate freedom and rights while still owning slaves (and having him give a speech) makes the country much worse than he imagined.
Answer:
The three men agree to think further about the matter, and when Casca and Brutus have gone, Cassius in a brief soliloquy indicates his plans to secure Brutus firmly for the conspiracy that he is planning against Caesar. Unrest is possible in Rome because the new leader is weak.
I dont know im really sorry about that. Really sorry.