I think it's naive to pray for world peace if we're not going to change the form in which we live.

Peace and justice are two sides of the same coin.

It is easier to lead men to combat, stirring up their passion, than to restrain them and direct them toward the patient labors of peace.

Peace is liberty in tranquillity.

The pursuit of peace and progress cannot end in a few years in either victory or defeat. The pursuit of peace and progress, with its trials and its errors, its successes and its setbacks, can never be relaxed and never abandoned.