On The Algebra of Logic (1885)
Context: If the sign were not related to its object except by the mind thinking of them separately, it would not fulfil the function of a sign at all. Supposing, then, the relation of the sign to its object does not lie in a mental association, there must be a direct dual relation of the sign to its object independent of the mind using the sign. In the second of the three cases just spoken of, this dual relation is not degenerate, and the sign signifies its object solely by virtue of being really connected with it. Of this nature are all natural signs and physical symptoms. I call such a sign an index, a pointing finger being the type of the class.
The index asserts nothing; it only says "There!" It takes hold of our eyes, as it were, and forcibly directs them to a particular object, and there it stops. Demonstrative and relative pronouns are nearly pure indices, because they denote things without describing them; so are the letters on a geometrical diagram, and the subscript numbers which in algebra distinguish one value from another without saying what those values are.
“A sign is in a conjoint relation to the thing denoted and to the mind.”
On The Algebra of Logic (1885)
Context: Any character or proposition either concerns one subject, two subjects, or a plurality of subjects. For example, one particle has mass, two particles attract one another, a particle revolves about the line joining two others. A fact concerning two subjects is a dual character or relation; but a relation which is a mere combination of two independent facts concerning the two subjects may be called degenerate, just as two lines are called a degenerate conic. In like manner a plural character or conjoint relation is to be called degenerate if it is a mere compound of dual characters.
A sign is in a conjoint relation to the thing denoted and to the mind. If this triple relation is not of a degenerate species, the sign is related to its object only in consequence of a mental association, and depends upon a habit. Such signs are always abstract and general, because habits are general rules to which the organism has become subjected. They are, for the most part, conventional or arbitrary. They include all general words, the main body of speech, and any mode of conveying a judgment. For the sake of brevity I will call them tokens.
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Charles Sanders Peirce 121
American philosopher, logician, mathematician, and scientist 1839–1914Related quotes
Source: Writings on the General Theory of Signs, 1971, p. 301
Source: How Maps Work: Representation, Visualization, and Design (1995), p. 337
Keeping Life Out of Confusion (1938)
Context: We ought to recognize that uncertainty of mind is not all a bad thing. It is a sign that your mind is still alive, still sensitive. If you are not at all confused in this day you are dead mentally and spiritually.
There is of course the peace of the cemetery. If you want that you can have it. But you will pay for such complacent serenity with blind eyes which do not see the world's fear and agony; with deaf ears, into which the still sad music of humanity never comes; with deadened nerves and unsensitized conscience.
We will never be brought to confusion, even in such a baffling and muddled world as ours, if we have a faith in a God of love as the ultimate power in the universe. The words "God is love" have this deep meaning: that everything that is against love is ultimately doomed and damned.
“Why should it not be the whole function of a word to denote many things?”
Source: Philosophical Papers (1979), p. 38.
The Kasîdah of Hâjî Abdû El-Yezdî (1870), Note I : Hâjî Abdû, The Man
Context: With Hâjî Abdû the soul is not material, for that would be a contradiction of terms. He regards it, with many moderns, as a state of things, not a thing; a convenient word denoting the sense of personality, of individual identity.
“All abstract sciences are nothing but the study of relations between signs.”
Dr. Théophile de Bordeu, in “Conversation Between D’Alembert and Diderot”
D’Alembert’s Dream (1769)
Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), Modern Science and Pantheism, p.74
Briefwechsel, ed. Arthur Henkel (1955-1975), vol. VII, p. 165.