Logic

Explore 7 quotes about Logic

If it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic.

Lewis Carroll

Through the Looking-Glass

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Topic

Logic

Author

Lewis Carroll

Source

Through the Looking-Glass

Medium

Novel

Language

English

Time

1871 1870s 19th century

Authentication Score 3

Original Citation

Carroll, Lewis. Through the Looking-Glass, and What Alice Found There. London: Macmillan, 1871, ch. 4.

Current Citation

Carroll, Lewis. "Through the Looking-Glass." Alice's Adventures in Wonderland & Through the Looking-Glass. Macmillan Collector's Library, 2016, ch. 4.

How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?

Sherlock Holmes

The Sign of the Four

More information about this quote

Topic

Process of elimination Logic Truth

Speaker

Sherlock Holmes

Author

Arthur Conan Doyle

Source

The Sign of the Four

Medium

Novel Magazine

Genre

Detective fiction

Language

English

Time

1890 1890s 19th century

Authentication Score 3

Original Citation

Doyle, Arthur. "The Sign of the Four; or, The Problem of the Sholtos." Lippincott's Monthly Magazine. London: Lippincott's, 1890, ch. 1.

Current Citation

Doyle, Arthur. The Sign of Four. The Sherlock Holmes Collector's Library. Detective Fiction, 2009, ch. 1.

"Contrariwise," continued Tweedledee, "if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic."

Lewis Carroll

Through the Looking-Glass

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More information about this quote

Topic

Nature of reality Logic

Author

Lewis Carroll

Source

Through the Looking-Glass

Medium

Novel

Genre

Children's literature

Language

English

Time

1871 1870s 19th century

Authentication Score 3

Original Citation

Carroll, Lewis. Through the Looking-Glass, and What Alice Found There. London: Macmillan, 1871, ch. 4.

Current Citation

Carroll, Lewis. "Through the Looking-Glass." Alice's Adventures in Wonderland & Through the Looking-Glass. Macmillan Collector's Library, 2016, ch. 4.

Fallacies, which do not cease to be fallacies because they become fashions.

G.K. Chesterton

More information about this quote

Topic

Intellectual trends Trends Logical fallacies Logic

Author

G.K. Chesterton

Source

Illustrated London News

Medium

Newspaper

Language

English

Time

1930 1930s 20th century

Authentication Score 3

Citation

Chesterton, G.K. "Novels on the Great War." The Collected Works of G.K. Chesterton. Vol. 35, Ignatius Press, 1986. Originally published by Illustrated London News, 19 Apr. 1930.

With method and logic one can accomplish anything!

Agatha Christie

The Kidnapped Prime Minister

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Topic

Logic

Author

Agatha Christie

Source

The Kidnapped Prime Minister Poirot Investigates

Medium

Short story

Genre

Detective fiction

Language

English

Time

1924 1920s 20th century

Authentication Score 3

Citation

Christie, Agatha. "The Kidnapped Prime Minister." Poirot Investigates. The Bodley Head, 1924.

Poets do not go mad; but chess-players do. Mathematicians go mad, and cashiers; but creative artists very seldom. I am not, as will be seen, in any sense attacking logic: I only say that this danger does lie in logic, not in imagination.

G.K. Chesterton

Orthodoxy

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Topic

Logic Reason

Author

G.K. Chesterton

Source

Orthodoxy

Genre

Religious literature

Language

English

Time

1908 1900s 20th century

Authentication Score 3

Citation

Chesterton, G.K. "Orthodoxy." The Collected Works of G.K. Chesterton. Vol. 1, Ignatius Press, 1986, ch. 4. Originally published in by John Lane Co., 1908.

Reason is always a kind of brute force; those who appeal to the head rather than the heart, however pallid and polite, are necessarily men of violence. We speak of "touching" a man's heart, but we can do nothing to his head but hit it.

G.K. Chesterton

More information about this quote

Topic

Reason Persuasion Logic

Author

G.K. Chesterton

Source

Charles II Twelve Types: A Collection of Biographies

Medium

Essay Biography

Language

English

Time

1902 1900s 20th century

Authentication Score 0

Citation

Chesterton, G.K. "Charles II." Twelve Types: A Collection of Biographies. Arthur L. Humphreys, 1902.