2,500 years ago, the Chinese philosopher Confucius asked Lao-tzu, the founder of Taoism, "What is Tao?" Lao-tzu opened his mouth but said nothing. Confucius left with a smile, but his students were puzzled. Confucius explained, "Lao-tzu has passed us the Tao. In his mouth, there are no teeth but only a tongue. The hard ones (teeth) died, but the soft one (the tongue) lives; the soft power is stronger than the hard power. That's the Tao!"... Open source is such a soft power.