What is a lasting formula for world peace?

In Neale Donald Walsh's The New Revelations―A Conversation with God, God says―

Yet now you can take the Five Steps to Peace and raise your consciousness, moving from concept to principle in considering, exploring and deeply understanding life. Should you wish to take this fast-track, here, again, is what you must do. Here, again, are the Five Steps to Peace―

Acknowledge that some of your old beliefs about God and about Life are no longer working.

Acknowledge that there is something you do not understand about God and about Life, the understanding of which could change everything.

Be willing for a new understanding of God and Life to now be brought forth, an understanding that could produce a new way of life on your planet.

Be courageous enough to explore and examine this new understanding, and if it aligns with your inner truth and knowing to enlarge your belief system to include it.

Live your lives, as demonstrations of your beliefs, rather than as denials of them.

And there you have it―a lasting formula for world peace, harmony and happiness.

May Peace Prevail On Earth!

Neale Donald Walsch, The New Revelations, A Conversation with God, Hodder & Stoughton, 2002, Chapter 21, 225