I read this today and had to share. One day, William Booth was asked to explain the secret of his success.

"I will tell you the secret. God has had all there was of me. There have been men with greater brains than I. Men with greater opportunities. But from the day I got the poor of London on my heart and a vision of what Jesus Christ could do, I made up my mind that God could have all of William Booth there was.
The greatness of a man's power is the measure of his surrender."