I’ve seen the first sentence of this quote, but not the rest.  Very interesting, especially the last line.  What a stark thing for such a man to say.

“I know men and I tell you that Jesus Christ is no mere man. Between Him and every other person in the world there is no possible term of comparison. Alexander, Caesar, Charlemagne, and I have founded empires. But on what did we rest the creation of our genius? Upon force. Jesus Christ founded His empire upon love; and at this hour millions of men would die for Him.”