Brutus: "Julius Caesar must be killed. I have no personal reason to attack him but I must do it for the general welfare. We know what type of person Caesar is so we must stop him before he does anything absurd."
Lucius: "Sir, I come with a letter for you that I found on your window while searching for flint." The letter was a call to arms to Brutus telling him to get up and do something about Rome being ruled by one man.
You are not sick Brutus! Tell me what you are hiding from me!
The conspirators enter to speak with Brutus
Please rid me of this sickness!
Brutus and the conspirators begin talking and planning to kill Julius Caesar make Rome "better"
Brutus' wife, Portia, claims that Brutus is not really sick and demands to learn his secrets he has been keeping from her
A sick man comes to Brutus saying he will do anything to become healthy again. Brutus states that if he does a task for him he can be healed. Brutus does not directly tell him the task but hints at doing something to a certain man, which can be inferred as the task of killing Julius Caesar.