(noun) The individual who bears the responsibility for something.
"You are not only responsible for what you say, but also for what you do not say."
"I don't want to be at the mercy of my emotions. I want to use them, to enjoy them, and to dominate them."
"We seem to be getting closer and closer to a situation where nobody is responsible for what they did but we are all responsible for what somebody else did."
"Generations do not cease to be born, and we are responsible to them because we are the only witnesses they have."
"Leave no authority existing not responsible to the people."