Columbia subject headings:
Ethics--Congresses.
Philosophy, Ancient--Congresses.
Self-consciousness (Awareness)--Congresses.
Harvard subject headings:
Ethics--Congresses
Philosophy, Ancient--Congresses.
Philosophy--History--Congresses.
Self-consciousness (Awareness)--Congresses.
Stoics--Congresses.
Princeton subject headings:
Ethics--Congresses.
Philosophy--History--Congresses.
Stoics--Congresses.