"Joan of Arc, there's a girl," he went on. "She said she spoke to the saints, when what she really saw were statues. But they spoke to her. Was she crazy? I don't know. I do know that she stopped the longest war in European history. Winston Churchill, no less, said of Joan, 'There is no purer figure in all of European history for a thousand years.' Freud, on the other hand, called her a schizophrenic. Who's right? You decide. Was she both mad and blessed? It's entirely possible, my friend. Entirely possible."
Benedict Groeschel, interviewed by Randall Sullivan in The Miracle Detective, p. 423.
From page 433 of the same book, talking about Einstein: As a mature man, Einstein "became, I believe, quite a religious person. He was fascinated by the Blessed Sacrament. He surrendered to his sense of mystery more and more as he approached the end of his life."
Also: "Einstein understood that it's important to have a well-developed sense of the mysterious before considering any truly important matter. . . Einstein recognized that science can never affirm or deny the existence of God, and that only stupid people put their ultimate faith in science."