Descartes suggests withholding assent from beliefs lacking complete certainty to justify rejecting them.
Descartes proposes to treat beliefs he can call into doubt by withholding assent from them, as he believes that beliefs lacking complete certainty should be doubted. He aims to find reasons for doubt in each belief to justify rejecting them. Descartes suggests that to discover certainty, one must be as careful in withholding assent from uncertain beliefs as from obvious falsehoods.
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