April 4, 2013. 116-minute dharma talk given by Thich Nhat Hanh, Brother Phap Dung, and Sr. Tue Nghiem from Mahachulalungkornrajavidyalaya University in Bangkok, Thailand.

This 13-minute segment is from the first dharma talk during the November 1997 retreat in Key West (Florida) and Thich Nhat Hanh offers us a teaching on silence. The practice of purification of speech. How do we practice with silence during the first four days of the retreat.