"so bent he seems
On desperate revenge that shall redound
Upon his own rebellious head" (3.84-6)
"yet public reason just,
Honor and empire with revenge enlarged
By conquering this new world compels me now
To do what else, though damned, I should abhor" (4.389-92).
"But what will not ambition and revenge
Descend to? Who aspires must down as low
As high he soared, obnoxious first or last
To basest things. Revenge at first though sweet
Bitter ere long back on it self recoils" (9.168-72).