Lecture23 - Of The Time Second Assault On The Senses The...

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EPISTEMOLOGY Exploring Our Access To The Truth; Examining Human Reason, Perception And Knowledge Three Great Philosophers And Their Different Epistemologies: Descartes, Locke and Berkeley
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DESCARTES’ PROJECT (Background) Descartes (1596-1650) “Father” Of Modern Philosophy; Multi-Talented Genius A Deeply Committed Catholic The Goal: An Edifice Of Knowledge The Inverted Pyramid The Ground Rules: Avoid Error Certainty And Justification Chains Of Justification Need For Certainty In First Link
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Descartes’ Project (cont.) Seeking A Solid Foundation For The Inverted Pyramid Of Knowledge Requirement: Absolute Certainty Primary Tool: The Wrecking Ball Of Cartesian Doubt Cartesian vs. Ordinary Doubt Labor Saving Device: Grouping Beliefs By Virtue Of Their Type Of Support Questioning Sources Of Beliefs
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Getting To Work: Seeking The Foundation First Assault On The Senses: The Argument From Illusion Reply: Senses Seem To Work OK Much
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Unformatted text preview: Of The Time Second Assault On The Senses: The Dreaming Argument Key Point: We Can’t Be Certain That We Aren’t Now Dreaming Seeking The Foundation (cont.) Third Assault On Senses; Primary Assault On A Priori (Mathematical) Beliefs And (Almost) Everything Else: The Deceiving Demon Argument Clearing The Decks With Doubt No Source Immune From Deception Note: Don’t Need To Believe Demon Is Real; Only Possible Seeking The Foundation (cont.) The “Cogito” “I Exist” Is Necessarily True Every Time I Think It Even To Be Deceived We Must Exist And Have Mental States Other Works: “Cogito Ergo Sum” “I Think Therefore I Am” Certainty About The Content Of The Mind We May Not Know If Thoughts And Experiences Are Accurate, But We Can Know We Are Having Such Thoughts And Experiences Descartes’ Archimedian Point...
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