Tsongkhapa was the greatest commentator in the history of Buddhism and wrote some 10,000 pages in eloquent explanation of the entire range of the ancient Buddhist classics. He undertook the challenge of compressing all this knowledge into a single poem. The result was his famous Three Principal Paths, fourteen verses written for a favored student in a faraway land. Tsongkhapa's masterpiece appears here with a commentary by the illustrious Pabongka Rinpoche (1878-1941), generally regarded as the foremost Tibetan teacher of Buddhism during the last century. The work has been translated by Geshe Lobsang Tharchin, one of the last Buddhist masters of Tibet.