Pity is a waste of emotion, a moral parasite that is harmful to one's health; "it cannot possibly be our responsibility to perpetuate the evil in the world." If one performs good out of self-pity, one is helping oneself rather than one's neighbor. Pity is based on feelings rather than maxims. It does not come from the heart but from the mind. Nietzsche believed that pity is harmful and unnecessary because it is based on feelings rather than reasons. If we performed good out of self-pity, we would be perpetuating our own problems rather than solving them. The only way to help others is with our actions, not our feelings. Action comes from will while feeling comes from nature. Will must rule over nature. Therefore, we must act from the heart, not the mind. Nietzsche believed that life should be lived forward, not back. This means that we should always look to the future and keep moving forward. We should never worry about past mistakes or failures, but instead learn from them and move on. Looking back only brings sadness and regrets which hold us back from living our lives fully. Pity is a feeling that attacks the mind rather than the heart. If we carried this feeling into action, we would be doing more harm than good.