“I see in Shakespeare,” the poet Keats said, “the power of resting in uncertainty without any irritable reaching after fact and reason.” What Shakespeare knew, he could not prove by fact and reason. In the truth he was seeking there could not be certainty logically demonstrated or factually self-evident. There can never be that kind of certainty in the things that are greatest and most important to us. To me in the course of my long life, this has become a profound conviction. No facts, no reasoning, can prove to me that Beethoven’s music is beautiful or that it is more blessed to give than to receive. No facts can prove to me that God is. There is an order of truth where we cannot have the proved certainties of the mind and where we do not need them.