Columbia subject headings:
Ethics.
Language and languages--Philosophy.
Wittgenstein, Ludwig, 1889-1951. Tractatus logico-philosophicus.
Harvard subject headings:
Ethics.
Language and languages--Philosophy
Wittgenstein, Ludwig, 1889-1951. Tractatus logico-philosophicus.
Princeton subject headings:
Ethics.
Language and languages--Philosophy.
Wittgenstein, Ludwig, 1889-1951. Tractatus logico-philosophicus.