In Derrida's quote, he's asking you if it's okay to act moral and responsible if you have the sense of duty and responsibility. Derrida does not believe that it is moral for a person to act moral and responsible because it is already programmed into you and you feel a duty to act moral and responsible. It is not your free will to act in those ways. You were basically trained since birth to act in these ways, and any other way that you act is immoral and irresponsible.
             Basically, I think Derrida says that you have no control over how you act. From birth, your parents raise you to be a child that respects others and their opinions, to be moral and choose the right actions. No one raises his or her kid to be a screw up and to be a complete fool. A paradox is a seemingly contradictory statement that may nonetheless be true. Derrida's paradox is his statement that you cannot act morally and responsibly. Kant said that it is your duty by law to act moral and perform moral actions. But if you enjoy the moral actions you perform then they are not moral. I disagree with both men. If it makes you happy, and it helps others, what is so morally wrong with it? Its like a buy one get one free deal; make someone happy while at the same time your happy. There is no duty to act moral and responsible, but people choose to act these ways, and yes, I do agree with Derrida where he states that morality and responsibility is programmed into you. You have the free will to choose to act like an idiot and to be shunned by society where everyone was brought up to moral and responsible for his or her own actions. I do agree that duty is an obligation. You do not have a duty to sit around all day on the couch and not move. You have the free will, but not the duty to choose this action. You have the duty to make your life enjoyable and to make others lives enjoyable as yours.
             Because duty is an obligation in many wa...