“Progress is born of doubt and inquiry. The Church never doubts, never inquires. To doubt is heresy, to inquire is to admit that you do not know—the Church does neither.”
“Assiduous and frequent questioning is indeed the first key to wisdom... for by doubting we come to inquiry; through inquiring we perceive the truth...”
“No doubt he is more than that, but we have no time to inquire.”
“Doubt wisely; in strange wayTo stand inquiring right, is not to stray;To sleep, or run wrong, is.”
“Faith doesn't mean that you never doubt. It only means that you never act upon your doubts.”
“Doubt thou the stars are fire;Doubt that the sun doth move;Doubt truth to be a liar;But never doubt I love.”