I want to take the word Christianity back to Christ himself, back to that mighty heart whose pulse seems to throb through the world today, that endless fountain of charity out of which I believe has come all true progress and all civilization that deserves the name. I go back to that great Spirit which contemplated a sacrifice for the whole of humanity. That sacrifice is not one of exclusion, but of an infinite and endless and joyous inclusion. And I thank God for it.
"What is Religion?". Speech at the "Parliament of World Religions", Columbian Exposition, Chicago World's Fair, 1893.