Columbia subject headings:
Ethics.
Kant, Immanuel, 1724-1804.
Neo-Kantianism.
Socialist ethics.
Harvard subject headings:
Kant, Immanuel, 1724-1804--Contributions in ethics.
Neo-Kantianism.
Socialist ethics.
Princeton subject headings:
Kant, Immanuel, 1724-1804--Contributions in ethics.
Neo-Kantianism.
Socialist ethics.