Columbia subject headings:
Ethics.
Experience.
Knowledge, Theory of.
Language and languages--Philosophy.
Piguet, J.-Claude (Jean-Claude), 1924-2000.
Widmer, Gabriel.
Harvard subject headings:
Philosophy and religion.
Philosophy.
Piguet, J.-Claude (Jean-Claude), 1924-2000--Bibliography.
Theology.
Widmer, Gabriel Philippe--Bibliography.
Princeton subject headings: