The real power here lies in distinguishing between *admitting* ignorance and *wallowing* in it—Lao Tzu means that knowing the precise boundaries of your understanding is itself a form of wisdom that prevents you from building grand theories on false certainties. Most people stumble not because they lack knowledge, but because they confidently act on incomplete information, never pausing to mark where their understanding actually ends. A doctor who admits "I'm unsure, let me consult a specialist" protects patients far better than one who half-knows and charges ahead. That pause—that honest reckoning with what remains obscure to you—is where genuine learning becomes possible.