Columbia subject headings:
Harvard subject headings:
Knowledge, Theory of--Congresses
Life--Congresses
Philosophy and science--Congresses.
Philosophy, Modern--Congresses.
Physics--Philosophy--Congresses
Reality--Philosophy--Congresses.
Reason--Philosophy--Congresses.
Science--Philosophy--Congresses
Princeton subject headings:
Knowledge, Theory of--Congresses.
Life--Congresses.
Philosophy and science--Congresses.
Philosophy, Modern--Congresses.
Physics--Philosophy--Congresses.
Reality--Philosophy--Congresses.
Reason--Philosophy--Congresses.
Science--Philosophy--Congresses.