Columbia subject headings:
Harvard subject headings:
Act (Philosophy)--Congresses.
Decision making--Congresses
Language and languages--Philosophy--Congresses
Life--Congresses
Wittgenstein, Ludwig, 1889-1951--Congresses.
Princeton subject headings:
Act (Philosophy)
Decision making.
Language and languages--Philosophy.
Life.
Wittgenstein, Ludwig, 1889-1951.