We have to train ourselves in the art of right thinking so we can produce positive, nourishing thoughts every day. If you had a negative thought about someone in the past, it’s not too late to do something about it. The present moment contains both the past and the future. If today you can produce a thought of compassion, of love, of forgiveness, then that positive thought has the power to transform the negative thought of yesterday and to guarantee a more beautiful future tomorrow.