- Ethics, Modern--18th century (6)
- Knowledge, Theory of--Early works to 1800 (2)
- Political science--Early works to 1800 (2)
- Aesthetics, Modern--18th century (1)
- Blake, William, 1757-1827--Ethics (1)
- Blake, William, 1757-1827--Political and social views (1)
- Blake, William, 1757-1827--Religion (1)
- Causation--Early works to 1800 (1)
- Dissenters, Religious--England--History--18th century (1)
- Ethics in literature (1)
- Ethics, German (1)
- Ethics, Modern--19th century (1)
- Hegel, Georg Wilhelm Friedrich, 1770-1831--Ethics (1)
- Idealism--Early works to 1800 (1)
- Judgment (Logic)--Early works to 1800 (1)
- Kant, Immanuel, 1724-1804--Contributions in ethics (1)
- Liberty--Early works to 1800 (1)
- Political science--Philosophy--History--18th century (1)
- Radicalism in literature (1)
- Radicalism--England--History--18th century (1)
- Reason--Early works to 1800 (1)
- Social ethics--Early works to 1800 (1)
- Soul--Early works to 1800 (1)
- Teleology--Early works to 1800 (1)
- Toleration--Early works to 1800 (1)