I claim that a man who keeps his mind open to a "self revealing supernatural power" is more intellectually honest than a man who closes his mind to the possibility of such a supernatural power.
"God in the Dock" by C.S. Lewis is the best essay on this subject that I've found.
Just as a man who keeps his mind open to "No supernatural power existing' is more intellectually honest than a man who closes his mind to the possibility that God doesn't exist?