Every Christmas, I make and send out ~100 greeting cards that usually follow a theme of peace. While searching for peace quotes, I found the following that I really like:
If we have no peace, it is because we have forgotten that we belong to each other.
Mother Theresa (1910-1997)
Peace cannot be kept by force. It can only be achieved by understanding.
Albert Einstein (1879-1955)
Better than a thousand hollow words is one word that brings peace.
Buddha (560-483 B.C.)
If there is to be peace in the world,
There must be peace in the nations.
If there is to be peace in the nations,
There must be peace in the cities.
If there is to be peace in the cities,
There must be peace between neighbors.
If there is to be peace between neighbors,
There must be peace in the home.
If there is to be peace in the home,
There must be peace in the heart.
Lao Tzu (570-490 B.C.)
You can't separate peace from freedom because no one can be at peace unless he has his freedom.
Malcolm X (1925-1965)
It is possible to live in peace.
Mahatma Gandhi (1869-1948)
Human Beings, indeed all sentient beings, have the right to pursue happiness and live in peace and freedom.
The XIVth Dalai Lama