Rinpoche discusses the meaning of buddha nature, our potential to become a buddha, in this teaching excerpt from the 38th Kopan Course. 

The collected teachings in this book demonstrate Lama Yeshe's understanding of the Western psyche and his ability to express profound truths in simple terms.

Lama Yeshe gave this powerful teaching about bringing the Dharma to the Western world at the first Enlightened Experience Celebration (EEC1), 1982.

In this excerpt from the 13th Kopan Course, Lama Zopa Rinpoche advises that if we listen to the teachings but don't practice, our mind will not be transformed.