1. what does it mean about cassius’s plan that he has to mislead brutus to make it happen?
2. what does it mean about brutus that he so readily believes what cassius says?
3.what does it mean about antony that brutus refuses to kill him?

1. Cassius’s plan that he has to mislead Brutus to make it happen meant that Cassius understands that Brutus will never act dishonorably.
2. Brutus readily believes what Cassius says because Brutus believes that a man should be noble over everything else.
3. Brutus refused to kill him because he knows that if he does, the people in Rome will turn against him. 

Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.