The True Power of Speech [With Hebrew Subtitles / מתומלל בעברית]

Given by Rabbi Mendel Kessin
Produced by The Chofetz Chaim Heritage Foundation (cchf.global)
This is the shiur that launched the shmiras halashon revolution going on in the world today.
The founders of CCHF listened to this shiur in 1988, and they credit the listening of this shiur completely to the founding of the Chofetz Chaim Heritage Foundation.