Columbia subject headings:
Arts--Philosophy--Congresses.
Asceticism--Congresses.
Asceticism--Social aspects--Congresses.
Philosophy--Congresses.
Self-control--Congresses.
Harvard subject headings:
Arts--Philosophy--Congresses
Asceticism--Congresses.
Asceticism--Social aspects--Congresses.
Philosophy--Congresses
Self-control--Congresses.
Princeton subject headings: