↑Proudfoot, Michael (2010). The Routledge dictionary of philosophy. A. R. Lacey, A. R.. Lacey (4th ed.). London: Routledge. pp. 341. ISBN978-0-203-42846-7. OCLC503050369. Reason: A general faculty common to all or nearly all humans...this faculty has seemed to be of two sorts, a faculty of intuition by which one 'sees' truths or abstract things ('essences' or universals, etc.), and a faculty of reasoning, i.e. passing from premises to a conclusion (discursive reason). The verb 'reason is confined to this latter sense, which is now anyway the commonest for the noun too
↑Rescher, Nicholas (2005). The Oxford companion to philosophy. Ted Honderich (2nd ed.). Oxford: Oxford University Press. p. 791. ISBN978-0-19-153265-8. OCLC62563098. reason. The general human 'faculty' or capacity for truth-seeking and problem solving{{cite book}}: CS1 maint: date and year (ลิงก์)
↑Mercier, Hugo; Sperber, Dan (2017). The Enigma of Reason. Cambridge, MA: Harvard University Press. p. 2. ISBN9780674368309. OCLC959650235. Enhanced with reason, cognition can secure better knowledge in all domains and adjust action to novel and ambitious goals, or so the story goes. [...] Understanding why only a few species have echolocation is easy. Understanding why only humans have reason is much more challenging. Compare: MacIntyre, Alasdair (1999). Dependent Rational Animals: Why Human Beings Need the Virtues. The Paul Carus Lectures. Vol. 20. Open Court Publishing. ISBN9780812693973. OCLC40632451. สืบค้นเมื่อ 2014-12-01. [...] the exercise of independent practical reasoning is one essential constituent to full human flourishing. It is not—as I have already insisted—that one cannot flourish at all, if unable to reason. Nonetheless not to be able to reason soundly at the level of practice is a grave disability.