The inscription at the memorial, attributed to Laozi – Chinese Poet and Philosopher …

If there is to be peace in the world, there must be peace between nations. 
If there is to be between nations, there must be peace in the cities. 
If there is to be peace in the cities, there must be peace within neighbours. 
If there is to be peace within neighbours, there must be peace at home. 
If there is to be peace at home, there must be peace in the heart.

Laozi – Lao Tzu, also rendered as Lao-Tze, was an ancient Chinese philosopher and writer. He is the reputed author of the Tao Te Ching, the founder of philosophical Taoism, and a deity in religious Taoism and traditional Chinese religions.

Laozi on Wikipedia – Laozi – Wikipedia

Details –
In partnership with the World Peace Bell Association, the Rotary Club of Canberra Burley Griffin built the Canberra Rotary Peace Bell within the Canberra Nara Peace Park precinct on the shores of Lake Burley Griffin.

Officially launched on 23 February 2018 the bell provides a destination in Nara Park to remind us that we want a peaceful World.

Canberra has a sister city relationship with Nara, Japan

An appropriate time to ring out for world peace. Let us not underestimate the power of prayer and communal thought for peace.