sentences:  In 1964 he completed his Ph.D. qualifying exams and traveled to Leiden for advanced studies in Sanskrit and Pali.In 1965 he went to India under a Foreign Area Fellowship Program (Ford Foundation) grant to study with living exponents of all of the Tibetan Buddhist and Bönpo traditions.He began his studies with Geshe Lobsang Lungtok (Ganden Changtse), Drukpa Thoosay Rinpoche and Khenpo Noryang, and Dilgo Khyentse Rinpoche.