Who said "Revenge is just another cage."?

This quote is attributed to Nebula.

Revenge is just another cage. - Nebula

"Revenge is just another cage."

Nebula Justice

"I didn't ask for this life."

"You're welcome."

"I will kill you slowly."

"Gamora may have stolen your money, but I will steal your life."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."