“Aristotle writes that persuasion is based on three things: the ethos, or personal character of the speaker; the pathos, or getting the audience into the right kind of emotional receptivity; and the logos, or the argument itself, carried out by abbreviated syllogisms, or something like deductive syllogisms, and by the use of example.”

— Randal Marlin

Source: Propaganda & The Ethics Of Persuasion (2002), Chapter Two, History Of Propaganda, p. 47

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Randal Marlin 27

Canadian academic 1938

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“Does the mathematical method proceed from particular to the general, and, if so, how can it be called deductive? …If we refuse to admit these consequences, it must be conceded that mathematical reasoning has of itself a sort of creative virtue and consequently differs from a syllogism.”

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Source: Science and Hypothesis (1901), Ch. I: On the Nature of Mathematical Reasoning (1905) Tr. https://books.google.com/books?id=5nQSAAAAYAAJ George Bruce Halstead
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“The example of a syllogism that he had studied in Kiesewetter's logic: Caius is a man, men are mortal, therefore Caius is mortal, had throughout his whole life seemed to him right only in relation to Caius, but not to him at all.”

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“The construction of hypotheses is a creative act of inspiration, intuition, invention; its essence is the vision of something new in familiar material. The process must be discussed in psychological, not logical, categories; studied in autobiographies and biographies, not treatises on scientific method; and promoted by maxim and example, not syllogism or theorem.”

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“There is nothing in the world like a persuasive speech to fuddle the mental apparatus and upset the convictions and debauch the emotions of an audience not practised in the tricks and delusions of oratory.”

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“Only if the third necessary thing could be given us. Number one, as I said: quality of information. Number two: leisure to digest it. And number three: the right to carry out actions based on what we learn from the interaction of the first two.”

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“The politician is much nearer in type to the barrister and advocate than to the scientist…The advocate and the politician are more interested in persuasion than in proof. They have a client or a policy to defend. The political audience is not dishonest in itself, nor does it desire or approve dishonesty or misrepresentation in others, but it is an audience only imperfectly prepared to follow a close argument, and the speaker wishes to make a favourable impression, to secure support for a policy. It is easy to see how this may lead to the depreciation of the verbal currency and to the circulation of promises which cannot be cashed.”

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“There is in the word, in the logos, something sacred which forbids us to gamble with it. To handle a language skilfuly is to practice a kind of evocative sorcery.”

Charles Baudelaire Théophile Gautier

Il y a dans le mot, dans le verbe, quelque chose de sacré qui nous défend d'en faire un jeu de hasard. Manier savamment une langue, c'est pratiquer une espèce de sorcellerie évocatoire.
XIV: "Théophile Gautier" http://fr.wikisource.org/wiki/Th%C3%A9ophile_Gautier_%28L%E2%80%99Art_romantique%29, as translated in The Idea of Poetry in France : From Houdar de La Motte to Baudelaire (1958) by Margaret Gilman, p. 263
Variant translations:
There exists in the word, in the verb, something sacred which prohibits us from viewing it as a mere game of chance. To manipulate language with wisdom is to practice a kind of evocative sorcery.
As quoted in Poetry of Grammar and Grammar of Poetry (1981) by Walter de Gruyter
There is in a word, in a verb, something sacred which forbids us from using it recklessly. To handle a language skillfully is to practice a kind of evocative sorcery.
There is in a word, in a verb, something sacred which forbids us from using it recklessly. To handle a language cunningly is to practice a kind of evocative sorcery.
L'art romantique (1869)

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Randal Marlin 27

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