<philosophical terminology> immediate, intuitive apprehension of the fundamental principles of morality. For such medieval ethicists as Peter Lombard and Aquinas, synderesis, unlike mere conscience, is both infallible and general. Recommended Reading: Ralph M. McInerny, Ethica Thomistica: The Moral Philosophy of Thomas Aquinas (Catholic U. of Am., 1997) and Daniel Westberg, Right Practical Reason: Aristotle, Action, and Prudence in Aquinas (Clarendon, 1994).
[A Dictionary of Philosophical Terms and Names]
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