I own the whole series but have yet to rewatch it since it originally aired. I'll watch an episode randomly though at times. The show as said by others has a ton of quotables.
I like this one by Gannicus in the prelude when Crixus was feeling that he didn't deserve to fight on the upcoming card Gannicus told him "There are many things given to us in this life for the wrong reasons. What we do with such blessings, that is the true test of a man."
That's my HBK looking, Yoda speaking Gladiator.
The brotherhood between Oenomaus and Gannicus, true gladiators
Gannicus: One day we shall face each other upon the sand, and have true decision.
Melitta: What would really happen? If you had to face each other, sine missione? No quarter given, no mercy shown?
Gannicus: I would give your husband a glorious death.
Gannicus and Oenomaus:
Melitta: You joke of killing a man you love. When someday you may be asked to.