"I Don't Know" is the Best Policy

The Dalai Lama, the global spiritual leader of Tibetan Buddhism, is spending his lifetime trying to build understanding among faiths around the world. And he repeatedly uses the phrase "I don't know," when asked a question for which he has no answer. He says so after a moment of earnest reflection. He doesn't try to speculate beyond his expertise. It's honesty in its humblest form. How many leaders try to be perfect, and how many followers lose comfort to distraction around such an inhuman quality?