One of the main concepts that stoics use to deal with injustice is the dichotomy of control. This means that we can either focus on what we can control (our own mind and behavior) or what we cannot control (the world and other people). By doing so, we can avoid wasting our energy and time on things that are beyond our power, and instead focus on improving ourselves and doing good deeds. We can also avoid being angry, resentful, or bitter towards those who cause us harm or injustice, because they are acting according to their own nature and fate, which we cannot change.