It would be possible to be at peace. When you are able to work your way through these truths by taking them to heart, you will find that those other people will no longer control your anger. You will begin to gain control of you life. Now check your answers and see if you have any change of heart. Too much pressure causes stress and anger.
Stress is a mental illness.
Teaching people to control their anger is of primary importance. I feel angry because of what others do to me. If you think that way, you will always be out of control. Thoughts create feelings, not events. Some people have a lot of anger in them.