Lao Tzu (also known as Laozi) was one of the most influential philosophers in Chinese history. He's also the author of the Tao Te Ching, a foundational text of Taoism—so it's no wonder we have ...

Hangu Pass was heavily defended by the State of Qin as the only reasonable route to invade the Qin Laozi was stopped by ... theDao De Jing at Hangu Pass Lao Tzu is the moral Holy Ghost Valley ...