Columbia subject headings:
Buddhism and philosophy.
Buddhism--Relations.
Philosophy, Comparative.
Philosophy, German.
Zen Buddhism--Doctrines.
Harvard subject headings:
Buddhism and philosophy.
Buddhism--Relations
Philosophy, Comparative.
Philosophy, German.
Zen Buddhism--Doctrines
Princeton subject headings:
Buddhism and philosophy.
Buddhism--Relations.
Philosophy, Comparative.
Philosophy, German.
Zen Buddhism--Doctrines.