In our complex industrial civilization of today the peace of righteousness and justice, the only kind of peace worth having, is at least as necessary in the industrial world as it is among nations. There is at least as much need to curb the cruel greed and arrogance of part of the world of capital, to curb the cruel greed and violence of part of the world of labor, as to check a cruel and unhealthy militarism in international relationships.

Nobel lecture (1910)