Philosophical Roots of Critical Thinking
Aristotle developed logic and syllogism. Socrates questioned assumptions. Descartes emphasized doubt. Enlightenment valued reason over authority.
What is this page about?
An intellectual history of critical thinking, tracing its roots over 2,400 years from Socrates's method of systematic questioning through Plato's theory of knowledge, Aristotle's formalization of logic, medieval scholasticism, Descartes's method of doubt, Enlightenment philosophy and Kant, the scientific method, informal logic, and Paulo Freire's critical pedagogy. It then covers contemporary tensions (logic versus disposition, individual reasoning versus social critique), the limits of critical thinking, and the research on teaching and assessing it.
What has been corrected on this page?
Every accepted correction to this page is recorded with the exact change, so readers can see how the page improved over time.
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Aristotle used three figures; the 256-mood count across four figures is a later development, not Aristotle's enumeration.
Before(he identified 256 possible forms, of which only a small number are valid)
After(working with three figures rather than the four of later logicians; the full enumeration of 256 moods across four figures is a later development, of which only a small number are valid)
Why: Corrected historical error: Aristotle worked with three figures of the syllogism; the 256-mood count across four figures is a later scholastic development, not Aristotle's own enumeration. Verified already live in body content; FAQ had no mention of this figure count.
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