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Full Idea
We require two conditions for intuition, namely that the proposition appear clear and distinct, and then that it be understood all at once and not successively. Deduction, on the other hand, implies a certain movement of the mind.
Gist of Idea
Clear and distinct truths must be known all at once (unlike deductions)
Source
René Descartes (Rules for the Direction of the Mind [1628], 11)
Book Ref
Descartes,René: 'Rules for the Direction of the Mind' [Newcomb Library 2023], p.32
A Reaction
A nice distinction. Presumably with deduction you grasp each step clearly, and then the inference and conclusion, and you can then forget the previous steps because you have something secure.