Read the passage from Act IV, Scene ii. Who is Pindarus' master?
LUCILIUS: He is at hand, and Pindarus is come
To do you salutation from his master.
BRUTUS: He greets me well. Your master, Pindarus,
In his own change, or by ill officers,
Hath given me some worthy cause to wish
Things done undone; but if he be at hand,
I shall be satisfied.
PINDARUS: I do not doubt
But that my noble master will appear
Such as he is, full of regard and honor.
BRUTUS: He is not doubted. A word, Lucilius,
How he received you. Let me be resolved.
LUCILIUS: With courtesy and with respect enough,
But not with such familiar instances,
Nor with such free and friendly conference,
As he hath used of old.