Columbia subject headings:
Schopenhauer, Arthur, 1788-1860--Congresses.
Schopenhauer, Arthur, 1788-1860--Influence--Congresses.
Harvard subject headings:
Political science--Philosophy--Congresses
Schopenhauer, Arthur, 1788-1860--Criticism and interpretation--Congresses.
Social sciences--Philosophy--Congresses
Sociology--Philosophy--Congresses
Princeton subject headings:
Schopenhauer, Arthur, 1788-1860--Congresses.
Schopenhauer, Arthur, 1788-1860--Influence--Congresses.