“Is there any knowledge in the world which is so certain that no reasonable man could doubt it?”

— Bertrand Russell , The Problems of Philosophy

Source: 1910s, The Problems of Philosophy (1912)

Adopted from Wikiquote. Last update Sept. 29, 2023. History

Help us to complete the source, original and additional information

Do you have more details about the quote "Is there any knowledge in the world which is so certain that no reasonable man could doubt it?" by Bertrand Russell?

Bertrand Russell 562

logician, one of the first analytic philosophers and politi… 1872–1970

Related quotes

“Every knowledge in which the reason is involved is not a rational knowledge. It means that any knowledge because the reason is involved in it cannot be considered as a rational knowledge. In a rational knowledge, it is necessary that in addition to the existence of reason, the judgment of reason about the thing that is to be known should be consistent with the reason and be rational. It is also necessary that the result of this knowledge be rational so that we consider that knowledge a rational knowledge”

Taraneh Javanbakht (1974) Iranian scientist, faculty, poet, translator, playwright and writer

the necessary and sufficient conditions for rational knowledge
Source: Great Islamic Encyclopedia website, 2016 https://www.cgie.org.ir/fa/news/154958

“The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.”

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

Variant: The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

“Reason, that which we call reason, reflex and reflective knowledge, the distinguishing mark of man, is a social product.”

Miguel de Unamuno (1864–1936) 19th-20th century Spanish writer and philosopher

The Tragic Sense of Life (1913), II : The Starting-Point

“At once it struck me what quality went to form a man of achievement, especially in literature, and which Shakespeare possessed so enormously — I mean negative capability, that is, when a man is capable of being in uncertainties, mysteries, doubts, without any irritable reaching after fact and reason.”

John Keats Letter to George and Thomas Keats

Letter to George and Thomas Keats (December 22, 1817)
Letters (1817–1820)

“What seems certain is that Pythagoras developed the idea of mathematical logic… He realized that numbers exist independently of the tangible world and therefore their study was untainted by inaccuracies of perception. This meant he could discover truths which were independent of opinion of prejudice and which were more absolute then any previous knowledge.”

Simon Singh (1964) British author

Fermat's Last Theorem (1997)

“What a world. It could be so wonderful if it wasn't for certain people.”

Woody Allen (1935) American screenwriter, director, actor, comedian, author, playwright, and musician

Radio Days (1987).

“Thenceforth they thought that, rationally concluded, doubt could become an instrument of knowledge.”

Marc Bloch (1886–1944) French historian, medievalist, and historiographer

“Whatever the misery, he could not regain contentment with a world which, once doubted, became absurd.”

Sinclair Lewis book Babbitt

Source: Babbitt

“Enthusiasm for the universe, in knowing as well as in creating, also answers the question of doubt and meaninglessness. Doubt is the necessary tool of knowledge. And meaninglessness is no threat so long as enthusiasm for the universe and for man as its center is alive.”

Paul Tillich book The Courage to Be

Source: The Courage to Be (1952), p. 121

“I suppose men are born with traits that can be cultivated in the direction of leadership. But there is also no doubt that leadership can be cultivated The idea of any man being born an army commander or being born to be a theater commander, such as General Eisenhower, just isn’t so. The characteristics of leadership, necessarily has to have certain decisiveness and confidence come from knowledge based on studies and training. The fundamental thing is your basic knowledge, the development of your mind, and your ability to apply this knowledge as you go along your military career.”

Lucian Truscott (1895–1965) Recipient of the Purple Heart medal

Quoted in Nineteen Stars: A Study in Military Character & Leadership, (CA: Presidio, 1971), by Edgar F. Puryear, Jr.— in answer to the question of whether leaders are born or made posed by author

“Is there any knowledge in the world which is so certain that no reasonable man could doubt it?”

Help us to complete the source, original and additional information

Bertrand Russell 562

Related quotes

Related topics