Books on Early Modern Philosophy
- Kant’s Analytic (Cambridge University Press, 1966)
- Locke, Berkeley, Hume: Central Themes (Oxford University Press, 1971)
- Kant’s Dialectic (Cambridge University Press, 1974)
- A Study of Spinoza’s Ethics (Indianapolis: Hackett, 1984)
- Learning from Six Philosophers (Oxford University Press, 2001)