Nguồn sơ cấp

• Descartes, René (1637), Discourse on Method.
• Spinoza, Baruch (1677), Ethics.
• Leibniz, Gottfried (1714), Monadology.
• Kant, Immanuel, (1781/1787), Critique of Pure Reason (Phê phán lý tính thuần túy).

Nguồn thứ cấp

• Audi, Robert (ed., 1999), The Cambridge Dictionary of Philosophy, Cambridge University Press, Cambridge, UK, 1995. 2nd edition, 1999.
• Blackburn, Simon (1996), The Oxford Dictionary of Philosophy, Oxford University Press, Oxford, UK, 1994. Paperback edition with new Chronology, 1996.
• Bourke, Vernon J. (1962), "Rationalism", p. 263 in Runes (1962).
• Lacey, A.R. (1996), A Dictionary of Philosophy, 1st edition, Routledge and Kegan Paul, 1976. 2nd edition, 1986. 3rd edition, Routledge, London, UK, 1996.
• Runes, Dagobert D. (ed., 1962), Dictionary of Philosophy, Littlefield, Adams, and Company, Totowa, NJ.
• Baird, Forrest E. (2008). From Plato to Derrida. Upper Saddle River, New Jersey: Pearson Prentice Hall. ISBN 0-13-158591-6. Đã bỏ qua tham số không rõ |coauthors= (gợi ý |author=) (trợ giúp)