Columbia subject headings:
Harvard subject headings:
Ethics--Philosophy.
Free will and determinism--Philosophy.
Gemistus Plethon, George, active 15th century--Criticism and interpretation.
Rousseau, Jean-Jacques, 1712-1778--Ethics.
Wittgenstein, Ludwig, 1889-1951--Ethics.
Princeton subject headings:
Ethics--History.
Gemistus Plethon, George, active 15th century--Ethics.
Rousseau, Jean-Jacques, 1712-1778--Ethics.
Wittgenstein, Ludwig, 1889-1951--Ethics.