This environmentalist didn't speak for 17 years to learn how to listen to his opponents

Environmentalist John Francis took a vow of silence because he worried that he’d stopped listening to people. In doing so, it deepened his understanding of the world around him.
Read more: https://www.cbc.ca/radio/outintheopen/breaking-silence-1.4526352/this-environmentalist-didn-t-speak-for-17-years-to-learn-how-to-listen-to-his-opponents-1.4527401?source=Snapzu