Good day insight.pob. Had an awesome night. Grateful for yet another day.
For the answer to your question, to live a peaceful life, one must be willing to live peaceably with everyone. By been good to our neighbors and everyone close to us. We shouldn't hold resentment or grudge against anyone. We should also learn forgiveness as that plays a great part to the state of our heart.
We should also not tolerate hatred or strife among people if we indeed aim to live a life without offence or troubles. These are ways I believe one can live a peaceful life.