Columbia subject headings:
Kant, Immanuel, 1724-1804.
Rousseau, Jean-Jacques, 1712-1778.
Time.
Harvard subject headings:
Kant, Immanuel, 1724-1804
Rousseau, Jean-Jacques, 1712-1778
Time.
Princeton subject headings:
Kant, Immanuel, 1724-1804.
Rousseau, Jean-Jacques, 1712-1778.
Time.