“Skepticism is the beginning of faith.”

“I'm beginning to be skeptical of my own skepticism.”

“Faith, unaccompanied by rigorous skepticism, is a recipe for myopia and foolishness.”

“Most institutions demand unqualified faith; but the institution of science makes skepticism a virtue.”

“Faith is not an art. Faith is not an achievement. Faith is not a good work of which some may boast while others can excuse themselves with a shrug of the shoulders for not being capable of it. It is a decisive insight of faith itself that all of us are incapable of faith in ourselves, whether we think of its preparation, beginning, continuation, or completion. In this respect believers understand unbelievers, skeptics, and atheists better than they understand themselves. Unlike unbelievers, they regard the impossibility of faith as necessary, not accidental ...”

“The fear of God is not the beginning of wisdom. The fear of God is the death of wisdom. Skepticism and doubt lead to study and investigation, and investigation is the beginning of wisdom.”