“If faith never encounters doubt, if truth never struggles with error, if good never battles evil, how can faith know its own power? In my own pilgrimage, if I had to choose between a faith that has stared doubt in the eye and made it blink, or a naive faith that has never known the firing line of doubt, I will choose the former every time.”

“Faith doesn't mean that you never doubt. It only means that you never act upon your doubts.”

“Take faith, for example. For many people in our world, the opposite of faith is doubt. The goal, then, within this understanding, is to eliminate doubt. But faith and doubt aren't opposites. Doubt is often a sign that your faith has a pulse, that it's alive and well and exploring and searching. Faith and doubt aren't opposites, they are, it turns out, excellent dance partners.”

“We cannot know what faith is if we have never had it, and we cannot obtain it as long as we deny it. Faith and doubt cannot exist in the same mind at the same time, for one will dispel the other.”

“He was never unfaithful to Bina. But there is no doubt that what broke the marriage was Landsman’s lack of faith.”

“And yet when I wish to explore how faith works, I usually sneak in by the back door of doubt, for I best learn about my own need for faith during its absence. God's invisibility guarantees I will experience times of doubt. Everyone dangles on a pendulum that swings from belief to unbelief, back to belief, and ends - where?”