星球漫步者 Planetwalker

In 1971 John Francis, known the world over as ‘Planetwalker,’ witnessed an oil tanker collision in the San Francisco Bay. The sight of oiled birds on the shoreline caused him to give up motorized transport and rely on his own two feet. Months after that he took a vow of silence convinced that listening rather than adding fuel to any fire was the way ahead. 　　He didn’t talk, but h...