Combining Texts

Ideas for 'fragments/reports', 'Principles of Philosophy' and 'The Problem of Knowledge'

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6 ideas

11. Knowledge Aims / B. Certain Knowledge / 4. The Cogito

3658	Total doubt can't include your existence while doubting [Descartes]

5005	I think, therefore I am, because for a thinking thing to not exist is a contradiction [Descartes]

5006	'Thought' is all our conscious awareness, including feeling as well as understanding [Descartes]

11. Knowledge Aims / B. Certain Knowledge / 5. Cogito Critique

19461

Knowing I exist reveals nothing at all about my nature [Ayer]

19459

To say 'I am not thinking' must be false, but it might have been true, so it isn't self-contradictory [Ayer]

19460

'I know I exist' has no counterevidence, so it may be meaningless [Ayer]