“Morgenbesser said the following of George Santayana: “There’s a guy who asserted both p and not-p, and then drew out all the consequences…””

—  Sidney Morgenbesser

"Language Log" blog, Language Log, If P, so why not Q http://itre.cis.upenn.edu/~myl/languagelog/archives/001314.html, 5 August 2004.

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "Morgenbesser said the following of George Santayana: “There’s a guy who asserted both p and not-p, and then drew out al…" by Sidney Morgenbesser?
Sidney Morgenbesser photo
Sidney Morgenbesser 16
American philosopher 1921–2004

Related quotes

Michael Polanyi photo

“Whitehead and Russell… translate \vdash p imples q into the words 'it is asserted that p implies q'. But the phrase 'it is asserted' suggests an impersonal happening of assertions: 'it is asserted' as 'it is raining' or 'it happens'. The value of the assertion sign is lost if we allow ourselves to revert in our verbal translation of it to the muddle of a declaratory sentence which asserts itself or is impersonally asserted by nobody in particular.”

Michael Polanyi (1891–1976) Hungarian-British polymath

Source: Personal Knowledge (1958), p. 28

Michael Polanyi photo

“In a strict usage the same symbol should never represent the act of sincerely asserting something and the content of what is asserted. For the symbolic distinction between the two, Frege has introduced the 'signpost' symbol. … \vdash p is to signify the actual assertion of p, while the bare symbol p must henceforth be used only as part of a sentence. … It should be clear from the modality of a sentence whether it is a question, a command, an invective, a complaint or an allegation of fact.”

Michael Polanyi (1891–1976) Hungarian-British polymath

Source: Personal Knowledge (1958), p. 27

“In any remembering, thinking or imagining, although the object of my intending is some state of affairs or other, I am also potentially aware as I intend that what I am doing is an act of remembering, thinking, or imagining. My asserting that S is P is not an assertion of mine unless I am implicitly aware as I assert that I am asserting, not entertaining the possibility that, S is P.”

Robert B. Pippin (1948) American philosopher

Source: Hegel's Idealism: The Satisfactions of Self-Consciousness (1989), p. 21

“Man in bed, wearing glasses and suit) I dreamt I was in the shower with a bunch of gay guys and no one looked at me twice. **(p. 21”

Nicole Hollander (1939) Cartoonist

Sylvia cartoon strip

Bertrand Russell photo

“Pure Mathematics is the class of all propositions of the form “p implies q,” where p and q are propositions containing one or more variables, the same in the two propositions, and neither p nor q contains any constants except logical constants. And logical constants are all notions definable in terms of the following: Implication, the relation of a term to a class of which it is a member, the notion of such that, the notion of relation, and such further notions as may be involved in the general notion of propositions of the above form. In addition to these, mathematics uses a notion which is not a constituent of the propositions which it considers, namely the notion of truth.”

Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist

Principles of Mathematics (1903), Ch. I: Definition of Pure Mathematics, p. 3
1900s

Richelle Mead photo

“Rose only hangs out with guys and psychopaths," said Mia.

"Well," he said cheerfully, "since I'm both a psychopath and a guy, that would explain why we're such good friends.”

Richelle Mead book Frostbite

Source: Frostbite

George Washington Plunkitt photo

“I know it’s an awful temptation, the hankerin’ to show off your learnin’. I’ve felt it myself, but I always resist it. I know the awful consequences. p. 53”

George Washington Plunkitt (1842–1924) New York State Senator

Plunkitt of Tammany Hall, Chapter 12, Dangers of the Dress Suit in Politics

E. W. Hobson photo

“A new point is determined in Euclidean Geometry exclusively in one of the three following ways:
Having given four points A, B, C, D, not all incident on the same straight line, then
(1) Whenever a point P exists which is incident both on (A, B) and on (C, D), that point is regarded as determinate.
(2) Whenever a point P exists which is incident both on the straight line (A, B) and on the circle C(D), that point is regarded as determinate.
(3) Whenever a point P exists which is incident on both the circles A(B), C(D), that point is regarded as determinate.
The cardinal points of any figure determined by a Euclidean construction are always found by means of a finite number of successive applications of some or all of these rules (1), (2) and (3). Whenever one of these rules is applied it must be shown that it does not fail to determine the point. Euclid's own treatment is sometimes defective as regards this requisite.
In order to make the practical constructions which correspond to these three Euclidean modes of determination, correponding to (1) the ruler is required, corresponding to (2) both ruler and compass, and corresponding to (3) the compass only.
…it is possible to develop Euclidean Geometry with a more restricted set of postulations. For example it can be shewn that all Euclidean constructions can be carried out by means of (3) alone…”

E. W. Hobson (1856–1933) British mathematician

Source: Squaring the Circle (1913), pp. 7-8

Sigmund Freud photo

“One thing only do I know for certain and that is that man's judgments of value follow directly his wishes for happiness-that, accordingly, they are an attempt to support his illusions with arguments. [p.111]”

Sigmund Freud book Civilization and Its Discontents

Source: Civilization and Its Discontents

Brandon Sanderson photo

“Every action we take has consequences, Vin," Kelsier said. "I've found that in both Allomancy and life, the person who can best judge the consequences of their actions will be the most successful.”

Brandon Sanderson (1975) American fantasy writer

Source: The Final Empire

Related topics