Collected Papers of Charles Sanders Peirce

absolute abstract according action argument Aristotle branch causation character chemistry classification color conception consciousness conservatism consider consists definite determination distinct division doctrine dyad dyadic dyadic relation elements ence evolution example existence existential experience fact fallibilism final cause force genuine Hegel hypothesis idea ideal imagine individual induction infallible inference inquiry instinct involves Kant kind knowledge less logic logic of relatives logicians mathematics matter means merely metaphysics method mind mode monad natural classes nerve-cell never nominalists normative science objects observation opinion particles phaneron phenomena philosophy physical possible precisely premisses present principle proposition protoplasm psychical psychology pure Pythagoras quality of feeling question reader reason regard relation result scientific seems sense suppose Synthetical consciousness theory things third thought tion triad triadic triadic relation trichotomies true truth universe whole word zoölogists