Doubt isn't the opposite of faith; it is an element of faith... - Paul Tillich

"I hope for the day when everyone can speak again of God without embarrassment."

"Sometimes I think it is my mission to bring faith to the faithless, and doubt to the faithful."

"Astonishment is the root of philosophy."

"The first duty of love is to listen."

"Doubt isn't the opposite of faith; it is an element of faith."