18+ St Augustine Quotes On Unjust Laws. Let's see what they said. To put it in the terms of st. Martin luther king, jr., quoted augustine and aquinas on this idea. Thomas aquinas an unjust law is a human law that . Conversely, one has a moral responsibility to disobey unjust laws. Conversely, one has a moral responsibility to disobey unjust laws. I would agree with st. Augustine that ' an unjust law is no law at all. I would agree with st. Augustine, that an unjust law is no law at all.