Columbia subject headings:
Schopenhauer, Arthur, 1788-1860--Congresses.
Harvard subject headings:
Philosophy, Modern--Congresses.
Schopenhauer, Arthur, 1788-1860--Congresses.
Schopenhauer, Arthur, 1788-1860--Influence--Congresses.
Princeton subject headings:
Schopenhauer, Arthur, 1788-1860--Congresses.
Schopenhauer, Arthur, 1788-1860--Influence--Congresses.