Short answers, pulled from the story.
David Seyfort Ruegg received his degrees in historical science and Sanskrit from the École des Hautes Etudes in 1957. The institution was located within Paris, a city known for its rigorous academic traditions.
The text of David Seyfort Ruegg's second doctorate examined the theory of tathâgatagarbha and gotra. This work explored soteriology and gnoseology within Buddhist thought while analyzing Buton Rinchen Drub's specific approach to these concepts.
L. S. Cousins described David Seyfort Ruegg as certainly the leading scholar today regarding tathagatagarbha doctrine. This assessment appeared in a book review published by the Bulletin of the School of Oriental and African Studies in 1992.
David Seyfort Ruegg occupied the Chair of Languages and Cultures of India and Tibet at Leiden University from 1966 to 1972. Jan Willem de Jong held that chair before him while Tilmann Vetter took it after.
David Seyfort Ruegg served as president of the International Association of Buddhist Studies from 1991 until 1999. These roles placed him at the center of global academic networks for decades.